Add MT8195 vencsys clock controllers which provide clock gate
control for video encoder.
Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Link: https://lore.kernel.org/r/20210914021633.26377-20-chun-jie.chen@mediatek.comSigned-off-by: Stephen Boyd <sboyd@kernel.org>