soc: rockchip: power-domain: Add a meaningful power domain name

Add the power domains names to the power domain info struct so we
have meaningful name for every power domain.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20210417112952.8516-10-jbx6244@gmail.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>