[automerger skipped] Don't crash if default supervision profile owner is not set am: b5fa0a6c5e am: cb447a87bc -s ours am: c9e264737b -s ours am: 1bf2e3e43c -s ours am: dc43e2d12c -s ours

am skip reason: Merged-In If441946fa278c04ae88122f6243f5a7dedd96ebc with SHA-1 bcb5ee6f43 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16460072

Change-Id: Ib26eb0cdca65f521358b97444af8e0ec373c5850