Update to v5.19 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.19

Test: Builds on coral.
Test: All bionic unit tests pass on a coral device.
Test: Able to log in to wembley system.
Change-Id: I6fa6f6edb59f2cef990a7ba96877d9f2d3974c62
diff --git a/libc/kernel/uapi/linux/ipv6.h b/libc/kernel/uapi/linux/ipv6.h
index b3db9ce..757cbda 100644
--- a/libc/kernel/uapi/linux/ipv6.h
+++ b/libc/kernel/uapi/linux/ipv6.h
@@ -148,6 +148,7 @@
   DEVCONF_IOAM6_ID,
   DEVCONF_IOAM6_ID_WIDE,
   DEVCONF_NDISC_EVICT_NOCARRIER,
+  DEVCONF_ACCEPT_UNTRACKED_NA,
   DEVCONF_MAX
 };
 #endif