usb: chipidea: usbmisc: add power lost check for imx7d

imx7d can shutdown domain power supply if none of peripheral in this
domain is registered as wakeup source, this patch add related codes to
check if power is lost.

Signed-off-by: Li Jun <jun.li@nxp.com>
Link: https://lore.kernel.org/r/20221013151442.3262951-8-xu.yang_2@nxp.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>