Armada XP pinctrl node gained an alias, make use of it.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-By: NBenoit Masson <yahoo@perenite.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>