If the parent device is in the DPM_RESUMING state, resume might get called
before the parent's resume has completed, because dpm_wait won't get
called. This issue was introduced by:
3d46a3c PM: Prevent waiting forever on asynchronous resume after abort
Wait for completion of the parent resume if the parent state is >= DPM_OFF
or == DPM_RESUMING
Change-Id: I14a4e16426f61efceaefedc7e772f53b7522b5dd
Signed-off-by: Benoit Goby <benoit@android.com>