Merge "Explicitly keep default constructor in rules without members" into main am: e8c5927b88

Original change: https://android-review.googlesource.com/c/platform/packages/apps/CellBroadcastReceiver/+/3438619

Change-Id: I4a2555e6a0c04991101fd8a89d05dbfdc8041673
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>