Merge "add csv output to format_benchmarks" into main am: 802de330

Original change: https://android-review.googlesource.com/c/platform/build/+/3094187



Change-Id: Iecabc5b4e7f954610c930ff154c5a9e9a28d0402
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>