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/time.h b/libc/kernel/uapi/linux/time.h
index dbf105b..eed430b 100644
--- a/libc/kernel/uapi/linux/time.h
+++ b/libc/kernel/uapi/linux/time.h
@@ -23,12 +23,12 @@
 #ifndef _STRUCT_TIMESPEC
 #define _STRUCT_TIMESPEC
 struct timespec {
-  __kernel_time_t tv_sec;
+  __kernel_old_time_t tv_sec;
   long tv_nsec;
 };
 #endif
 struct timeval {
-  __kernel_time_t tv_sec;
+  __kernel_old_time_t tv_sec;
   __kernel_suseconds_t tv_usec;
 };
 struct timezone {