Update to v5.10 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.10

Test: Built cuttlefish and flame images. Ran bionic unit tests on both.
Change-Id: I37ffc850970adcce1febbe2269c202632fce763a
diff --git a/libc/kernel/uapi/linux/cdrom.h b/libc/kernel/uapi/linux/cdrom.h
index d8d7f68..8f1c2f0 100644
--- a/libc/kernel/uapi/linux/cdrom.h
+++ b/libc/kernel/uapi/linux/cdrom.h
@@ -155,7 +155,10 @@
   unsigned char data_direction;
   int quiet;
   int timeout;
-  void __user * reserved[1];
+  union {
+    void __user * reserved[1];
+    void __user * unused;
+  };
 };
 #define CD_MINS 74
 #define CD_SECS 60