Vulkan: Suppress 3 failing blit tests on Pixel 2. Bug: angleproject:2743 Change-Id: I1693a5b301fa10a92263aab0cec14829851fe21f Reviewed-on: https://chromium-review.googlesource.com/1148461 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>