Merge pull request #3312 from grische/fix/ports-on-7520-v2

fritzbox-7530/7520: utilize lan1 as wan, others as lan 

package/gluon-core/luasrc/lib/gluon/upgrade/020-interfaces

@@ -63,6 +63,10 @@ elseif platform.match('ath79', 'generic', {
 	'ubnt,unifiac-pro',
 }) then
 	lan_ifname, wan_ifname = 'eth0.2', 'eth0.1'
+elseif platform.match('ipq40xx', 'generic', {
+	'avm,fritzbox-7530',
+}) then
+	lan_ifname, wan_ifname = 'lan2 lan3 lan4', 'lan1'
 elseif platform.match('ramips', 'mt7621', {
 	'netgear,wac104',
 }) then

package/gluon-core/luasrc/lib/gluon/upgrade/021-interface-roles

@@ -43,6 +43,7 @@ if uci:get('gluon', 'iface_wan') then
 end
 if uci:get('gluon', 'iface_single') then
 	roles.wan = uci:get_list('gluon', 'iface_single', 'role')
+	roles.lan = uci:get_list('gluon', 'iface_single', 'role')
 end
 
 -- Non-existing interfaces are nil, so they will not be added to the table