This is a reland of 349c0830
Skip YUV tests on Pixel2

Original change's description:
> Vulkan: Handle immutable sampler state change in TextureVk
>
> Transitioning between sources in RGB and YUV colorspace or between
> YUV formats with different layout should force the recreation of
> pipeline layout and the invalidation of texture's sampler.
>
> Only textures that are EGLImage targets are handled for now.
>
> Bug: b/155487768
> Bug: angleproject:5033
> Bug: angleproject:5773
> Test: ImageTest.SourceAHBTarget2DExternalCycleThrough*Vulkan
> Change-Id: I02d5763e7f89b910313e14b57bfc5403113dfbb2
> Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2924415
> Reviewed-by: Jamie Madill <jmadill@chromium.org>
> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
> Commit-Queue: Mohan Maiya <m.maiya@samsung.com>

Bug: b/155487768
Bug: angleproject:5033
Bug: angleproject:5773
Change-Id: Ie3791bc6f6e9b53eb0db23759a14fdc038c8f5b6
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2939354
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>