[kernel] fix borken of-i2c dependencies

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36191 3c298f89-4303-0410-b956-a3cf2f4a3e73
[kernel] unbreak i2c-mv64xxx dependencies

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36192 3c298f89-4303-0410-b956-a3cf2f4a3e73