Fix vkAttachmentRateTests

Fix vkAttachmentRateTests

The VkRenderingFragmentShadingRateAttachmentInfoKHR struct has its
shadingRateAttachmentTexelSize member set to the dimension of FSR
attachment, instead of attachmentTexelSize provided by the test.

A graphics pipeline used to draw FSR attachment, which is then used to
draw another color attachment. But the VkPipelineRenderingCreateInfoKHR
used by this pipeline sets the color format to that of the color
attachment, instead of FSR attachment

Affects:
dEQP-VK.fragment_shading_rate.dynamic_rendering.attachment_rate.*

Components: Vulkan

VK-GL-CTS issue: 3439

Change-Id: I36dad0f7dfa267c702fb611cd3b1b285fe0bb339