ramips: avoid invalid pointer dereference in pinmux code

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36269 3c298f89-4303-0410-b956-a3cf2f4a3e73
ramips: fix console speed for OMNI-EMB-HPM

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36270 3c298f89-4303-0410-b956-a3cf2f4a3e73