upmpdcli: Revert default interface to 'br-lan' (correct mistaken assumption)

Signed-off-by: Ted Hess <thess@kitschensync.net>

multimedia/upmpdcli/files/upmpdcli.config

@@ -1,5 +1,5 @@
 config upmpdcli lan
-	option interface 'lan'
+	option interface 'br-lan'
 #	option friendly_name 'upmpdcli'
 #	option mpd_host '127.0.0.1'
 #	option mpd_port '6600'