Update to v5.13 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.13

Test: Builds, bionic unit tests.
Change-Id: Ia4360ca4a2808206f64187dcb234d73c5752624b
diff --git a/libc/kernel/uapi/linux/nexthop.h b/libc/kernel/uapi/linux/nexthop.h
index f99a074..4bc9ff0 100644
--- a/libc/kernel/uapi/linux/nexthop.h
+++ b/libc/kernel/uapi/linux/nexthop.h
@@ -34,6 +34,7 @@
 };
 enum {
   NEXTHOP_GRP_TYPE_MPATH,
+  NEXTHOP_GRP_TYPE_RES,
   __NEXTHOP_GRP_TYPE_MAX,
 };
 #define NEXTHOP_GRP_TYPE_MAX (__NEXTHOP_GRP_TYPE_MAX - 1)
@@ -50,7 +51,28 @@
   NHA_GROUPS,
   NHA_MASTER,
   NHA_FDB,
+  NHA_RES_GROUP,
+  NHA_RES_BUCKET,
   __NHA_MAX,
 };
 #define NHA_MAX (__NHA_MAX - 1)
+enum {
+  NHA_RES_GROUP_UNSPEC,
+  NHA_RES_GROUP_PAD = NHA_RES_GROUP_UNSPEC,
+  NHA_RES_GROUP_BUCKETS,
+  NHA_RES_GROUP_IDLE_TIMER,
+  NHA_RES_GROUP_UNBALANCED_TIMER,
+  NHA_RES_GROUP_UNBALANCED_TIME,
+  __NHA_RES_GROUP_MAX,
+};
+#define NHA_RES_GROUP_MAX (__NHA_RES_GROUP_MAX - 1)
+enum {
+  NHA_RES_BUCKET_UNSPEC,
+  NHA_RES_BUCKET_PAD = NHA_RES_BUCKET_UNSPEC,
+  NHA_RES_BUCKET_INDEX,
+  NHA_RES_BUCKET_IDLE_TIME,
+  NHA_RES_BUCKET_NH_ID,
+  __NHA_RES_BUCKET_MAX,
+};
+#define NHA_RES_BUCKET_MAX (__NHA_RES_BUCKET_MAX - 1)
 #endif