drivers: meson: introduce secure power controller driver

This patch adds Power controller driver support for Amlogic
A1 family using secure monitor calls. The power domains register
only can access in secure world.

Signed-off-by: Alexey Romanov <avromanov@sberdevices.ru>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230531093156.29240-4-avromanov@sberdevices.ru


Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>