feat(imx8m): keep pu domains in default state during boot stage

No need to keep all PU domains on as the full power domain driver
support has been added.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: Iec22dcabbbfe3f38b915104a437d396d7b1bb2d8
2 files changed