ralink: pinctrl fix for non muxed pins

Pins with no mux option failed to be recognized as gpios.

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38540 3c298f89-4303-0410-b956-a3cf2f4a3e73
ubox: update to latest git head

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38541 3c298f89-4303-0410-b956-a3cf2f4a3e73