AA: ar71xx: add AR934X_GPIO_FUNC_* defines

Backport of r35965.

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

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@35967 3c298f89-4303-0410-b956-a3cf2f4a3e73
AA: ar71xx: om2p-hs: use correct bit mask to disable JTAG functionality

Backport of r35966.

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

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@35968 3c298f89-4303-0410-b956-a3cf2f4a3e73