Disable conflicting fragment shading rate features
Features of VK_EXT_fragment_density_map and VK_NV_shading_rate_image cannot
be enabled at the same time as features of VK_KHR_fragment_shading_rate.
Instead if the VK_KHR_fragment_shading_rate features are enabled then
disable the VK_EXT_fragment_density_map and VK_NV_shading_rate_image features
and use a temporary device with them enabled for testing.
Components: Vulkan, Framework
VK-GL-CTS Issue: 2665
Affects: *
Change-Id: I544c021ed963bd453635283282a6a272383e448e