Vulkan: Match min/magFilter to chromaFilter VkSamplerCreateInfo.magFilter and minFilter must match VkSamplerYcbcrConversionCreateInfo.chromaFilter. VkSamplerYcbcrConversionCreateInfo.chromaFilter is currently hard-coded to VK_FILTER_NEAREST in HardwareBufferImageSiblingVkAndroid(), so force magFilter and minFilter to VK_FILTER_NEAREST in SamplerDesc::init() if an externalFormat is being used. Bug: b/178424566 Change-Id: Ia1f7fc21e3faa4e57f837ed3ae70608134150aea Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2683038 Commit-Queue: Tim Van Patten <timvp@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>