Update to v5.16 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.16

Test: Builds and bionic unit tests pass.
Change-Id: I2522c4f2a0efb9f8a193e1f2d65868e478217502
diff --git a/libc/kernel/uapi/linux/ioam6_iptunnel.h b/libc/kernel/uapi/linux/ioam6_iptunnel.h
index 31f1f74..7426225 100644
--- a/libc/kernel/uapi/linux/ioam6_iptunnel.h
+++ b/libc/kernel/uapi/linux/ioam6_iptunnel.h
@@ -19,7 +19,18 @@
 #ifndef _UAPI_LINUX_IOAM6_IPTUNNEL_H
 #define _UAPI_LINUX_IOAM6_IPTUNNEL_H
 enum {
+  __IOAM6_IPTUNNEL_MODE_MIN,
+  IOAM6_IPTUNNEL_MODE_INLINE,
+  IOAM6_IPTUNNEL_MODE_ENCAP,
+  IOAM6_IPTUNNEL_MODE_AUTO,
+  __IOAM6_IPTUNNEL_MODE_MAX,
+};
+#define IOAM6_IPTUNNEL_MODE_MIN (__IOAM6_IPTUNNEL_MODE_MIN + 1)
+#define IOAM6_IPTUNNEL_MODE_MAX (__IOAM6_IPTUNNEL_MODE_MAX - 1)
+enum {
   IOAM6_IPTUNNEL_UNSPEC,
+  IOAM6_IPTUNNEL_MODE,
+  IOAM6_IPTUNNEL_DST,
   IOAM6_IPTUNNEL_TRACE,
   __IOAM6_IPTUNNEL_MAX,
 };