Handle null exception when carrier config is missing

Bug: 148191378
Test: atest com.android.server.wifi
Change-Id: I92daad5a3f84efee668f147b60f1fd7edba8cd97
2 files changed
tree: f2e9859fc319b0b38b176639bff021be924fe40e
  1. apex/
  2. service/
  3. PREUPLOAD.cfg