Merge "Catch UnsupportedOperationException of startLegacyVpn" into main am: 485e8800ed

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Settings/+/2822270

Change-Id: Iba8a2d2cdd2730cc0cdf4e5c851866badbbc06a6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>