Skip kotor trace on Swiftshader due to flakiness After changing the driver uniforms to push constants, the kotor trace became flaky on Linux/Swiftshader. In this CL, the flaky test is skipped. Bug: angleproject:7565 Change-Id: Ia3deb1344ce2dfb8cec443d197b0f95788a12599 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3829907 Reviewed-by: Roman Lavrov <romanl@google.com> Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com>