Reverting usb changes

f324c9f5 usb: dwc3: core: don't trigger runtime pm when remove driver
a68cbd8b usb: dwc3: core: add phy cleanup for probe error handling

Change-Id: I3a4d23ebb20c961a08814271404eb58484f19235
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>