Add power domains support for RV1126 SoC.

Cypto, VO and NPU domains will add it future patches.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Link: https://lore.kernel.org/r/20220818124132.125304-4-jagan@edgeble.aiSigned-off-by: Heiko Stuebner <heiko@sntech.de>