Merge "Add .clang-format to frameworks/av" am: e887c77709 am: d556d4060d am: 898bb8f4a0 am: 4f79af9019 am: 44bc02a6a6

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1794568

Change-Id: I7e46ff0f2695a7961999d12d432702e14e56e6cd