Merge "Set min_sdk_version to 29 in SampleRollbackApp." am: fbfc1da075

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2263732

Change-Id: I14b2a14c5b8f281fb5e1e291a042f2b1578d1ff0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>