[automerger skipped] Make ManagedProvisioning hide non-system overlays am: f0908ba3cc am: 3137e71e46 -s ours am: 92a7478c5b -s ours

am skip reason: Merged-In I4bda57bd80f34402e0a63554e719dceda60a296f with SHA-1 4b04bf81f8 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ManagedProvisioning/+/16569297

Change-Id: I23729121cdaade8aa898a0d7e9e9803bf835abe0