rfkill module needs leds trigger support

target/linux/config/Config.in.netdevice

@@ -253,6 +253,7 @@ config ADK_KERNEL_MAC80211_LEDS
 	boolean
 	select ADK_KPACKAGE_KMOD_LEDS_CLASS
 	select ADK_KERNEL_NEW_LEDS
+	select ADK_KERNEL_LEDS_TRIGGERS
 
 config ADK_KERNEL_WLAN_80211
 	boolean