feat(imx8m): add the PU power domain support on imx8mm/mn

Add the PU power domain support for imx8mm/mn.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: Ib88b4b5db956fdf2c77d2f2f3723d61a7060409d
10 files changed