Vulkan: Enable BindUniformLocationTest.Compositor. This was probably fixed some time ago. Possibly due to matrix uniform support. Bug: angleproject:2642 Change-Id: Ic4b9524d82e6770dcba117f5c155c413074ec172 Reviewed-on: https://chromium-review.googlesource.com/1200365 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>