Update to v5.5 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.5

Test: Boots on walleye.
Test: Ran bionic-unit-tests on walleye.
Test: Boots on cuttlefish.
Test: Ran bionic-unit-tests on cuttlefish.
Change-Id: I57387d3c31e0ba5ad125ffe291cecf365c7b374e
Merged-In: I57387d3c31e0ba5ad125ffe291cecf365c7b374e
diff --git a/libc/kernel/uapi/linux/shm.h b/libc/kernel/uapi/linux/shm.h
index 57394cb..72ee715 100644
--- a/libc/kernel/uapi/linux/shm.h
+++ b/libc/kernel/uapi/linux/shm.h
@@ -30,9 +30,9 @@
 struct __kernel_legacy_shmid_ds {
   struct __kernel_legacy_ipc_perm shm_perm;
   int shm_segsz;
-  __kernel_time_t shm_atime;
-  __kernel_time_t shm_dtime;
-  __kernel_time_t shm_ctime;
+  __kernel_old_time_t shm_atime;
+  __kernel_old_time_t shm_dtime;
+  __kernel_old_time_t shm_ctime;
   __kernel_ipc_pid_t shm_cpid;
   __kernel_ipc_pid_t shm_lpid;
   unsigned short shm_nattch;