Strip `adb devices` output for APK installs am: 1c982e13f1 am: 5f085877f9 am: ea116a00ce Original change: https://android-review.googlesource.com/c/platform/tools/test/mobly_extensions/+/2545072 Change-Id: I263b605c32804207b6d4072caa07b63e7665d2db Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>