Update to v5.9 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.9

Test: Boots cuttlefish 64bit, passes 32 bit and 64 bit bionic unit tests.
Change-Id: Ib5503355b238ea75595538e63eb000c867d06ef7
diff --git a/libc/kernel/uapi/linux/ethtool_netlink.h b/libc/kernel/uapi/linux/ethtool_netlink.h
index 868d3c6..da4fb46 100644
--- a/libc/kernel/uapi/linux/ethtool_netlink.h
+++ b/libc/kernel/uapi/linux/ethtool_netlink.h
@@ -48,6 +48,7 @@
   ETHTOOL_MSG_TSINFO_GET,
   ETHTOOL_MSG_CABLE_TEST_ACT,
   ETHTOOL_MSG_CABLE_TEST_TDR_ACT,
+  ETHTOOL_MSG_TUNNEL_INFO_GET,
   __ETHTOOL_MSG_USER_CNT,
   ETHTOOL_MSG_USER_MAX = __ETHTOOL_MSG_USER_CNT - 1
 };
@@ -81,6 +82,7 @@
   ETHTOOL_MSG_TSINFO_GET_REPLY,
   ETHTOOL_MSG_CABLE_TEST_NTF,
   ETHTOOL_MSG_CABLE_TEST_TDR_NTF,
+  ETHTOOL_MSG_TUNNEL_INFO_GET_REPLY,
   __ETHTOOL_MSG_KERNEL_CNT,
   ETHTOOL_MSG_KERNEL_MAX = __ETHTOOL_MSG_KERNEL_CNT - 1
 };
@@ -184,6 +186,8 @@
   ETHTOOL_A_LINKSTATE_LINK,
   ETHTOOL_A_LINKSTATE_SQI,
   ETHTOOL_A_LINKSTATE_SQI_MAX,
+  ETHTOOL_A_LINKSTATE_EXT_STATE,
+  ETHTOOL_A_LINKSTATE_EXT_SUBSTATE,
   __ETHTOOL_A_LINKSTATE_CNT,
   ETHTOOL_A_LINKSTATE_MAX = __ETHTOOL_A_LINKSTATE_CNT - 1
 };
@@ -412,6 +416,40 @@
   __ETHTOOL_A_CABLE_TEST_TDR_NTF_CNT,
   ETHTOOL_A_CABLE_TEST_TDR_NTF_MAX = __ETHTOOL_A_CABLE_TEST_TDR_NTF_CNT - 1
 };
+enum {
+  ETHTOOL_UDP_TUNNEL_TYPE_VXLAN,
+  ETHTOOL_UDP_TUNNEL_TYPE_GENEVE,
+  ETHTOOL_UDP_TUNNEL_TYPE_VXLAN_GPE,
+  __ETHTOOL_UDP_TUNNEL_TYPE_CNT
+};
+enum {
+  ETHTOOL_A_TUNNEL_UDP_ENTRY_UNSPEC,
+  ETHTOOL_A_TUNNEL_UDP_ENTRY_PORT,
+  ETHTOOL_A_TUNNEL_UDP_ENTRY_TYPE,
+  __ETHTOOL_A_TUNNEL_UDP_ENTRY_CNT,
+  ETHTOOL_A_TUNNEL_UDP_ENTRY_MAX = (__ETHTOOL_A_TUNNEL_UDP_ENTRY_CNT - 1)
+};
+enum {
+  ETHTOOL_A_TUNNEL_UDP_TABLE_UNSPEC,
+  ETHTOOL_A_TUNNEL_UDP_TABLE_SIZE,
+  ETHTOOL_A_TUNNEL_UDP_TABLE_TYPES,
+  ETHTOOL_A_TUNNEL_UDP_TABLE_ENTRY,
+  __ETHTOOL_A_TUNNEL_UDP_TABLE_CNT,
+  ETHTOOL_A_TUNNEL_UDP_TABLE_MAX = (__ETHTOOL_A_TUNNEL_UDP_TABLE_CNT - 1)
+};
+enum {
+  ETHTOOL_A_TUNNEL_UDP_UNSPEC,
+  ETHTOOL_A_TUNNEL_UDP_TABLE,
+  __ETHTOOL_A_TUNNEL_UDP_CNT,
+  ETHTOOL_A_TUNNEL_UDP_MAX = (__ETHTOOL_A_TUNNEL_UDP_CNT - 1)
+};
+enum {
+  ETHTOOL_A_TUNNEL_INFO_UNSPEC,
+  ETHTOOL_A_TUNNEL_INFO_HEADER,
+  ETHTOOL_A_TUNNEL_INFO_UDP_PORTS,
+  __ETHTOOL_A_TUNNEL_INFO_CNT,
+  ETHTOOL_A_TUNNEL_INFO_MAX = (__ETHTOOL_A_TUNNEL_INFO_CNT - 1)
+};
 #define ETHTOOL_GENL_NAME "ethtool"
 #define ETHTOOL_GENL_VERSION 1
 #define ETHTOOL_MCGRP_MONITOR_NAME "monitor"