Update to kernel headers v4.7.2.

Modify the kernel header update script to rename C++ keyword
struct members to something else. This fixes problems when including
these kernel files in C++ code.

Also, make a manual change to linux/fib_rules.h and comment out the
value FRA_PAD since it conflicts with a special android kernel value
FRA_UID_START that has not been upstreamed yet.

Test: Built aosp_angler, aosp_x86_64, aosp_mips (bionic only)
Test: Booted on angler and ran bionic unit tests
Test: Built these changes in internal master

Change-Id: Ia22b7e3ca409404696dba76311f49157f4a9ceed
diff --git a/libc/kernel/uapi/linux/mroute6.h b/libc/kernel/uapi/linux/mroute6.h
index 8a3c363..d4da98c 100644
--- a/libc/kernel/uapi/linux/mroute6.h
+++ b/libc/kernel/uapi/linux/mroute6.h
@@ -18,101 +18,98 @@
  ****************************************************************************/
 #ifndef _UAPI__LINUX_MROUTE6_H
 #define _UAPI__LINUX_MROUTE6_H
+#include <linux/kernel.h>
 #include <linux/types.h>
-#include <linux/sockios.h>
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#include <linux/sockios.h>
 #define MRT6_BASE 200
 #define MRT6_INIT (MRT6_BASE)
 #define MRT6_DONE (MRT6_BASE + 1)
-#define MRT6_ADD_MIF (MRT6_BASE + 2)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MRT6_ADD_MIF (MRT6_BASE + 2)
 #define MRT6_DEL_MIF (MRT6_BASE + 3)
 #define MRT6_ADD_MFC (MRT6_BASE + 4)
 #define MRT6_DEL_MFC (MRT6_BASE + 5)
-#define MRT6_VERSION (MRT6_BASE + 6)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MRT6_VERSION (MRT6_BASE + 6)
 #define MRT6_ASSERT (MRT6_BASE + 7)
 #define MRT6_PIM (MRT6_BASE + 8)
 #define MRT6_TABLE (MRT6_BASE + 9)
-#define MRT6_ADD_MFC_PROXY (MRT6_BASE + 10)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MRT6_ADD_MFC_PROXY (MRT6_BASE + 10)
 #define MRT6_DEL_MFC_PROXY (MRT6_BASE + 11)
 #define MRT6_MAX (MRT6_BASE + 11)
 #define SIOCGETMIFCNT_IN6 SIOCPROTOPRIVATE
-#define SIOCGETSGCNT_IN6 (SIOCPROTOPRIVATE + 1)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define SIOCGETSGCNT_IN6 (SIOCPROTOPRIVATE + 1)
 #define SIOCGETRPF (SIOCPROTOPRIVATE + 2)
 #define MAXMIFS 32
 typedef unsigned long mifbitmap_t;
-typedef unsigned short mifi_t;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+typedef unsigned short mifi_t;
 #define ALL_MIFS ((mifi_t) (- 1))
 #ifndef IF_SETSIZE
 #define IF_SETSIZE 256
-#endif
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif
 typedef __u32 if_mask;
 #define NIFBITS (sizeof(if_mask) * 8)
-#ifndef DIV_ROUND_UP
-#define DIV_ROUND_UP(x,y) (((x) + ((y) - 1)) / (y))
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#endif
 typedef struct if_set {
-  if_mask ifs_bits[DIV_ROUND_UP(IF_SETSIZE, NIFBITS)];
-} if_set;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  if_mask ifs_bits[__KERNEL_DIV_ROUND_UP(IF_SETSIZE, NIFBITS)];
+} if_set;
 #define IF_SET(n,p) ((p)->ifs_bits[(n) / NIFBITS] |= (1 << ((n) % NIFBITS)))
 #define IF_CLR(n,p) ((p)->ifs_bits[(n) / NIFBITS] &= ~(1 << ((n) % NIFBITS)))
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IF_ISSET(n,p) ((p)->ifs_bits[(n) / NIFBITS] & (1 << ((n) % NIFBITS)))
 #define IF_COPY(f,t) bcopy(f, t, sizeof(* (f)))
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define IF_ZERO(p) bzero(p, sizeof(* (p)))
 struct mif6ctl {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   mifi_t mif6c_mifi;
   unsigned char mif6c_flags;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   unsigned char vifc_threshold;
   __u16 mif6c_pifi;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   unsigned int vifc_rate_limit;
 };
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define MIFF_REGISTER 0x1
 struct mf6cctl {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   struct sockaddr_in6 mf6cc_origin;
   struct sockaddr_in6 mf6cc_mcastgrp;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   mifi_t mf6cc_parent;
   struct if_set mf6cc_ifset;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 struct sioc_sg_req6 {
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   struct sockaddr_in6 src;
   struct sockaddr_in6 grp;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   unsigned long pktcnt;
   unsigned long bytecnt;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   unsigned long wrong_if;
 };
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct sioc_mif_req6 {
   mifi_t mifi;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   unsigned long icount;
   unsigned long ocount;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   unsigned long ibytes;
   unsigned long obytes;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 struct mrt6msg {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define MRT6MSG_NOCACHE 1
 #define MRT6MSG_WRONGMIF 2
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define MRT6MSG_WHOLEPKT 3
   __u8 im6_mbz;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   __u8 im6_msgtype;
   __u16 im6_mif;
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   __u32 im6_pad;
   struct in6_addr im6_src, im6_dst;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #endif
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */