If enable Mediatek 8173 SoC, it should also enable power domain
driver. Otherwise access clk subsystem register will fail.
Signed-off-by: NEddie Huang <eddie.huang@mediatek.com>
Acked-by: NMatthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: NKevin Hilman <khilman@linaro.org>