Update to kernel headers v4.9.3.

Test: Built arm, arm64, x86, x86_64 targets.
Test: Booted on angler, and ran bionic unit tests (32 bit and 64 bit).

Change-Id: I1e1baf5e5ce74283d21140736aad64c25dbdbe4e
diff --git a/original/uapi/linux/openvswitch.h b/original/uapi/linux/openvswitch.h
index 54c3b4f..59ed399 100644
--- a/original/uapi/linux/openvswitch.h
+++ b/original/uapi/linux/openvswitch.h
@@ -605,13 +605,13 @@
  * @vlan_tci: Tag control identifier (TCI) to push.  The CFI bit must be set
  * (but it will not be set in the 802.1Q header that is pushed).
  *
- * The @vlan_tpid value is typically %ETH_P_8021Q.  The only acceptable TPID
- * values are those that the kernel module also parses as 802.1Q headers, to
- * prevent %OVS_ACTION_ATTR_PUSH_VLAN followed by %OVS_ACTION_ATTR_POP_VLAN
- * from having surprising results.
+ * The @vlan_tpid value is typically %ETH_P_8021Q or %ETH_P_8021AD.
+ * The only acceptable TPID values are those that the kernel module also parses
+ * as 802.1Q or 802.1AD headers, to prevent %OVS_ACTION_ATTR_PUSH_VLAN followed
+ * by %OVS_ACTION_ATTR_POP_VLAN from having surprising results.
  */
 struct ovs_action_push_vlan {
-	__be16 vlan_tpid;	/* 802.1Q TPID. */
+	__be16 vlan_tpid;	/* 802.1Q or 802.1ad TPID. */
 	__be16 vlan_tci;	/* 802.1Q TCI (VLAN ID and priority). */
 };
 
@@ -721,9 +721,10 @@
  * is copied from the value to the packet header field, rest of the bits are
  * left unchanged.  The non-masked value bits must be passed in as zeroes.
  * Masking is not supported for the %OVS_KEY_ATTR_TUNNEL attribute.
- * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q header onto the
- * packet.
- * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q header off the packet.
+ * @OVS_ACTION_ATTR_PUSH_VLAN: Push a new outermost 802.1Q or 802.1ad header
+ * onto the packet.
+ * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q or 802.1ad header
+ * from the packet.
  * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in
  * the nested %OVS_SAMPLE_ATTR_* attributes.
  * @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the