ath79: ubnt-xm: create mapping for RSSI LEDs

Ubiquiti XM series boards contain a set of RSSI LEDs. Create an UCI
mapping for them, so visual feedback on RSSI is available, when using
userspace RSSI monitor daemon.

Runtime tested using rssileds.

Signed-off-by: Lech Perczak <lech.perczak@gmail.com>

target/linux/ath79/base-files/etc/board.d/01_leds

@@ -92,6 +92,13 @@ tplink,tl-wr841-v11)
 	ucidef_set_led_switch "lan3" "LAN3" "tp-link:green:lan3" "switch0" "0x04"
 	ucidef_set_led_switch "lan4" "LAN4" "tp-link:green:lan4" "switch0" "0x02"
 	;;
+ubnt,bullet-m|\
+ubnt,nano-m|\
+ubnt,rocket-m)
+	ucidef_set_led_rssi "rssilow" "RSSILOW" "ubnt:red:link1" "wlan0" "1" "100"
+	ucidef_set_led_rssi "rssimediumlow" "RSSIMEDIUMLOW" "ubnt:orange:link2" "wlan0" "26" "100"
+	ucidef_set_led_rssi "rssimediumhigh" "RSSIMEDIUMHIGH" "ubnt:green:link3" "wlan0" "51" "100"
+	ucidef_set_led_rssi "rssihigh" "RSSIHIGH" "ubnt:green:link4" "wlan0" "76" "100"
 esac
 
 board_config_flush