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/romfs_fs.h b/libc/kernel/uapi/linux/romfs_fs.h
index 8e98714..bffbaf9 100644
--- a/libc/kernel/uapi/linux/romfs_fs.h
+++ b/libc/kernel/uapi/linux/romfs_fs.h
@@ -35,14 +35,14 @@
   __be32 word1;
   __be32 size;
   __be32 checksum;
-  char name[0];
+  char name[];
 };
 struct romfs_inode {
   __be32 next;
   __be32 spec;
   __be32 size;
   __be32 checksum;
-  char name[0];
+  char name[];
 };
 #define ROMFH_TYPE 7
 #define ROMFH_HRD 0