Update to v6.0 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-6.0

Test: Boots on coral.
Test: Bionic unit tests pass.
Change-Id: I282de83f23b432bef58214108a93700bdadddf0f
diff --git a/libc/kernel/uapi/linux/seg6.h b/libc/kernel/uapi/linux/seg6.h
index f180485..b8206cc 100644
--- a/libc/kernel/uapi/linux/seg6.h
+++ b/libc/kernel/uapi/linux/seg6.h
@@ -28,7 +28,7 @@
   __u8 first_segment;
   __u8 flags;
   __u16 tag;
-  struct in6_addr segments[0];
+  struct in6_addr segments[];
 };
 #define SR6_FLAG1_PROTECTED (1 << 6)
 #define SR6_FLAG1_OAM (1 << 5)