Upgrade emulator to emu-master-dev build 12282254 am: 66ff36a4f4 am: c66ee19382 Original change: https://android-review.googlesource.com/c/platform/prebuilts/android-emulator/+/3250652 Change-Id: Iaa04b269ed04cee0211a1e298c8bd07be42285d6 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>