perf: Disable media.mobile/mse.html?media=tulip2.vp9.webm

Disable the test on all mobile platforms since it's failing.
Corresponding desktop test has already been disabled.

NOTRY=true
TBR=crouleau@chromium.org

Bug: 978045 978519
Change-Id: Ia09844fae0568baa8337b02add441792f323ce2e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1677291
Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: John Chen <johnchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#672290}
1 file changed