Merge "simpleperf: Add --user-buffer-size in record cmd" am: c9664bd4f9 am: 670d2d8042

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/2443762

Change-Id: I0ae6c882c84a240e40b751c7049eff05833b0334
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>