Reduce spam in native perf tests.
Reduce spam in native perf tests.

The QC driver was repeating HIGH priority messages about map flags.

Bug: angleproject:4943
Change-Id: I927c38249f840544a7c1f5e595fa34e706e401bd
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2352472
Reviewed-by: Cody Northrop <94770d7fe1cce6ea0791fa9927c1107de4d2e37b@google.com>
Commit-Queue: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>

ppy/angle,ppy/angle,ppy/angle,ppy/angle