rk3399 grf register bit defenitions should locate in header
file, so that not only pinctrl can use it.
Signed-off-by: NKever Yang <kever.yang@rock-chips.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Added rockchip tag:
Signed-off-by: NSimon Glass <sjg@chromium.org>