Disable a bunch of benchmarks.system_health_smoke_test.SystemHealthBenchmarkSmokeTest.system_health.memory_mobile for Nexus 5X due to flake

TBR=perezju@chromium.org, eyaich@chromium.org

Bug: 964804
Change-Id: Ib482e6565c8f3ccec556298a414964ca8ccd3c52
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1616837
Reviewed-by: Fergus Dall <sidereal@google.com>
Commit-Queue: Fergus Dall <sidereal@google.com>
Cr-Commit-Position: refs/heads/master@{#661254}
1 file changed