[HysteresisDB] Fix NullPointerException at CellularQualityMonitor am: 0ec6955ec5

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Telephony/+/22410468

Change-Id: I56509cbdd21b97f5077a2d40f17924b474584571
Signed-off-by: Automerger Merge Worker <[email protected]>
tree: 7a27759c0e4aa4bfdab835dfebe77a99db8b6de6
  1. apex/
  2. libs/
  3. services/
  4. .gitignore
  5. OWNERS
  6. PREUPLOAD.cfg
  7. TEST_MAPPING