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/snmp.h b/libc/kernel/uapi/linux/snmp.h
index a503a7e..d98f39e 100644
--- a/libc/kernel/uapi/linux/snmp.h
+++ b/libc/kernel/uapi/linux/snmp.h
@@ -305,6 +305,8 @@
   LINUX_MIB_TLSRXDEVICE,
   LINUX_MIB_TLSDECRYPTERROR,
   LINUX_MIB_TLSRXDEVICERESYNC,
+  LINUX_MIB_TLSDECRYPTRETRY,
+  LINUX_MIB_TLSRXNOPADVIOL,
   __LINUX_MIB_TLSMAX
 };
 #endif