Merge "Clear ringbuffer after dumping to file" into sc-dev am: 45cb33bf am: 4773ef50 am: 13c945cd

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/15257244

Change-Id: I0f291a317a4cede0c7072c16368675e402153c36