Update to v4.17.3 kernel headers.

Test: Builds, boots on a walleye.
Change-Id: I389d8b61ec00ea309e38d1b1a2e0dace48c21edb
diff --git a/libc/kernel/uapi/linux/tipc_sockets_diag.h b/libc/kernel/uapi/linux/tipc_sockets_diag.h
new file mode 100644
index 0000000..7d7d016
--- /dev/null
+++ b/libc/kernel/uapi/linux/tipc_sockets_diag.h
@@ -0,0 +1,29 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI__TIPC_SOCKETS_DIAG_H__
+#define _UAPI__TIPC_SOCKETS_DIAG_H__
+#include <linux/types.h>
+#include <linux/sock_diag.h>
+struct tipc_sock_diag_req {
+  __u8 sdiag_family;
+  __u8 sdiag_protocol;
+  __u16 pad;
+  __u32 tidiag_states;
+};
+#endif