ramips-mt7620: remove "broken" status for ASUS RT-AC51U (#2494)

docs/user/supported_devices.rst

@@ -251,6 +251,10 @@ mpc85xx-p1020
 ramips-mt7620
 -------------
 
+* ASUS
+
+  - RT-AC51U
+
 * GL.iNet
 
   - GL-MT300A

package/gluon-core/luasrc/lib/gluon/upgrade/010-primary-mac

@@ -117,6 +117,7 @@ local primary_addrs = {
 		}},
 		{'ramips', 'mt7620', {
 			'xiaomi,miwifi-mini',
+			'asus,rt-ac51u',
 		}},
 	}},
 	{phy(1), {

targets/ramips-mt7620

@@ -2,7 +2,6 @@
 
 device('asus-rt-ac51u', 'asus_rt-ac51u', {
 	factory = false,
-	broken = true, -- no 5GHz usable, LEDs not fully supported
 })