[perf] Move android-master-perf to --step_up_only.
[perf] Move android-master-perf to --step_up_only.

Bug: skia:6800
Change-Id: I45097167dcbe53d9db70695a0f401760e7a8d3f0
Reviewed-on: https://skia-review.googlesource.com/21080
Reviewed-by: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@google.com>
Commit-Queue: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot