airoha proto: Setup VXLAN offloading.

airoha/base-files/etc/hotplug.d/proto/10-vxlan

+#!/bin/sh
+
+[ "$PROTOCOL" = "vxlan" -o "$PROTOCOL" = "vxlan6" ] || exit 0
+[ "$ACTION" = "pre-setup" ] || exit 0
+
+if [ -e /proc/tc3162/hwnat_npu_vxlan_offload_shortcut ]; then
+	echo 1 > /proc/tc3162/hwnat_npu_vxlan_offload_shortcut
+fi
+
+if [ -e /proc/tc3162/hwnat_npu_offload_proto ]; then
+	echo 1 > /proc/tc3162/hwnat_npu_offload_proto
+fi
+
+/userfs/bin/ppemgr vxlan_hash enable