pmdomain: amlogic: Add support for T7 power domains controller

Add support for T7 power controller. T7 power control
registers are in secure domain, and should be accessed by SMC.

Signed-off-by: xianwei.zhao <xianwei.zhao@amlogic.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230911025223.3433776-6-xianwei.zhao@amlogic.com


[Ulf: Re-based to fit the pmdomain subsystem]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>