venus: add VK_KHR_fragment_shading_rate

Notes:
- handle the property interop with VK_EXT_sample_locations
- handle the interop with pipeline creation

Signed-off-by: Yiwei Zhang <zzyiwei@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27942>

src/virtio/vulkan/vn_command_buffer.c

@@ -2511,3 +2511,13 @@ vn_CmdSetTessellationDomainOriginEXT(VkCommandBuffer commandBuffer,
    VN_CMD_ENQUEUE(vkCmdSetTessellationDomainOriginEXT, commandBuffer,
                   domainOrigin);
 }
+
+void
+vn_CmdSetFragmentShadingRateKHR(
+   VkCommandBuffer commandBuffer,
+   const VkExtent2D *pFragmentSize,
+   const VkFragmentShadingRateCombinerOpKHR combinerOps[2])
+{
+   VN_CMD_ENQUEUE(vkCmdSetFragmentShadingRateKHR, commandBuffer,
+                  pFragmentSize, combinerOps);
+}