FrameworkFacade: Check if DPM service is null

DPM service may not be available on all devices. Handle the
non-existence of DPM service gracefully.

Bug: 154128878
Test: Compiles
Change-Id: I378bce1cc94611610ea1aec8a9e82c3bd50d8921
1 file changed
tree: 1bd81aff24978698331b395383e456b888cc3e1d
  1. apex/
  2. service/
  3. PREUPLOAD.cfg