pmdomain: amlogic: modify some power domains property

Some power domains for C3 can be using runtime PM,
remove ALWAYS_ON property. And add some power domains
description when ALWAYS_ON property.

Signed-off-by: xianwei.zhao <xianwei.zhao@amlogic.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230911025223.3433776-2-xianwei.zhao@amlogic.com


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