Update to v4.19 kernel headers.

Test: Builds and boots.
Change-Id: I99a9ed79666e143b47f02ca4e59eed94f69b7e4a
(cherry picked from commit a981e2e52e2e95a65fa9c9b6fb16dcb4c83dd576)
diff --git a/libc/kernel/uapi/linux/seg6_local.h b/libc/kernel/uapi/linux/seg6_local.h
index 7a10701..73873a8 100644
--- a/libc/kernel/uapi/linux/seg6_local.h
+++ b/libc/kernel/uapi/linux/seg6_local.h
@@ -28,6 +28,7 @@
   SEG6_LOCAL_NH6,
   SEG6_LOCAL_IIF,
   SEG6_LOCAL_OIF,
+  SEG6_LOCAL_BPF,
   __SEG6_LOCAL_MAX,
 };
 #define SEG6_LOCAL_MAX (__SEG6_LOCAL_MAX - 1)
@@ -47,7 +48,15 @@
   SEG6_LOCAL_ACTION_END_S = 12,
   SEG6_LOCAL_ACTION_END_AS = 13,
   SEG6_LOCAL_ACTION_END_AM = 14,
+  SEG6_LOCAL_ACTION_END_BPF = 15,
   __SEG6_LOCAL_ACTION_MAX,
 };
 #define SEG6_LOCAL_ACTION_MAX (__SEG6_LOCAL_ACTION_MAX - 1)
+enum {
+  SEG6_LOCAL_BPF_PROG_UNSPEC,
+  SEG6_LOCAL_BPF_PROG,
+  SEG6_LOCAL_BPF_PROG_NAME,
+  __SEG6_LOCAL_BPF_PROG_MAX,
+};
+#define SEG6_LOCAL_BPF_PROG_MAX (__SEG6_LOCAL_BPF_PROG_MAX - 1)
 #endif