Update to kernel headers v4.10.

Test: Built angler, booted on angler, ran bionic unit tests.
Change-Id: Ia24511e74106116ea84b44ab724865ec492de8f9
diff --git a/libc/kernel/uapi/linux/seg6_hmac.h b/libc/kernel/uapi/linux/seg6_hmac.h
new file mode 100644
index 0000000..f84aeae
--- /dev/null
+++ b/libc/kernel/uapi/linux/seg6_hmac.h
@@ -0,0 +1,38 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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_LINUX_SEG6_HMAC_H
+#define _UAPI_LINUX_SEG6_HMAC_H
+#include <linux/seg6.h>
+#define SEG6_HMAC_SECRET_LEN 64
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define SEG6_HMAC_FIELD_LEN 32
+struct sr6_tlv_hmac {
+  struct sr6_tlv tlvhdr;
+  __u16 reserved;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  __be32 hmackeyid;
+  __u8 hmac[SEG6_HMAC_FIELD_LEN];
+};
+enum {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  SEG6_HMAC_ALGO_SHA1 = 1,
+  SEG6_HMAC_ALGO_SHA256 = 2,
+};
+#endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */