ar71xx: add support for MikroTik hAP ac lite

This patch adds support for the MikroTik RouterBOARD hAP ac lite
(RB952Ui-5ac2nD).

The hAP ac lite is nearly identical to the hAP, with an added QCA9887
5GHz radio. The 2.4GHz radio ID is also changed in the hAP ac lite.

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

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

@@ -905,6 +905,9 @@ ar71xx_board_detect() {
 	*"RouterBOARD 951Ui-2nD")
 		name="rb-951ui-2nd"
 		;;
+	*"RouterBOARD 952Ui-5ac2nD")
+		name="rb-952ui-5ac2nd"
+		;;
 	*"RouterBOARD LHG 5nD")
 		name="rb-lhg-5nd"
 		;;

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

@@ -638,6 +638,7 @@ platform_check_image() {
 	rb-750up-r2|\
 	rb-941-2nd|\
 	rb-951ui-2nd|\
+	rb-952ui-5ac2nd|\
 	rb-lhg-5nd|\
 	rb-mapl-2nd)
 		return 0
@@ -690,6 +691,7 @@ platform_pre_upgrade() {
 	rb-750up-r2|\
 	rb-941-2nd|\
 	rb-951ui-2nd|\
+	rb-952ui-5ac2nd|\
 	rb-lhg-5nd|\
 	rb-mapl-2nd)
 		# erase firmware if booted from initramfs