Add a phase clock type for HiSilicon SoCs,which supports
clk_set_phase operation.
Signed-off-by: Ntianshuliang <tianshuliang@hisilicon.com>
Signed-off-by: NJiancheng Xue <xuejiancheng@hisilicon.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>