ar71xx: add support for MikroTik hAP ac

This patch adds initial support for the MikroTik RouterBOARD hAP ac
(RB962UiGS-5HacT2HnT).

All functions are supported except:
-SFP cage (eth1) is not working
-WLAN LEDs are not working

Signed-off-by: Ryan Mounce <ryan@mounce.com.au>

target/linux/ar71xx/base-files/lib/ar71xx.sh

@@ -908,6 +908,9 @@ ar71xx_board_detect() {
 	*"RouterBOARD 952Ui-5ac2nD")
 		name="rb-952ui-5ac2nd"
 		;;
+	*"RouterBOARD 962UiGS-5HacT2HnT")
+		name="rb-962uigs-5hact2hnt"
+		;;
 	*"RouterBOARD LHG 5nD")
 		name="rb-lhg-5nd"
 		;;

target/linux/ar71xx/base-files/lib/upgrade/platform.sh

@@ -639,6 +639,7 @@ platform_check_image() {
 	rb-941-2nd|\
 	rb-951ui-2nd|\
 	rb-952ui-5ac2nd|\
+	rb-962uigs-5hact2hnt|\
 	rb-lhg-5nd|\
 	rb-mapl-2nd)
 		return 0
@@ -692,6 +693,7 @@ platform_pre_upgrade() {
 	rb-941-2nd|\
 	rb-951ui-2nd|\
 	rb-952ui-5ac2nd|\
+	rb-962uigs-5hact2hnt|\
 	rb-lhg-5nd|\
 	rb-mapl-2nd)
 		# erase firmware if booted from initramfs