ar71xx: add AR934X_GPIO_FUNC_* defines

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

git-svn-id: svn://svn.openwrt.org/openwrt@35965 3c298f89-4303-0410-b956-a3cf2f4a3e73
ar71xx: om2p-hs: use correct bit mask to disable JTAG functionality

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

git-svn-id: svn://svn.openwrt.org/openwrt@35966 3c298f89-4303-0410-b956-a3cf2f4a3e73