Merge "Move benchmarks from tests/ to new directory benchmarks/" am: 3fb1bca5b1 am: 67c0d631a2 am: 4c03df5f3d am: 03c1ea4d5b am: 827f3a05fd

Original change: https://android-review.googlesource.com/c/platform/system/media/+/1353244

Change-Id: I5f0b1910a6d17e2602df09e1a010b0e93428b067