power: domain: make imx8-power-domain.c legacy

The current i.MX8 power domain driver is based on i.MX vendor
power domain tree which will retire later.

The Linux upstream use a single pd node for power domain driver,
and U-Boot will adopt that. When U-Boot i.MX8 dts synced with
Linux Kernel upstream and related driver ready, the legacy
driver will be removed.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2 files changed