anv: Count surfaces for non-YCbCr images in GetDescriptorSetLayoutSupport
We were accidentally not counting those surfaces Fixes: ddc40691 "anv: Implement VK_KHR_maintenance3" Reviewed-by:Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com> Reviewed-by:
Lionel Landwerlin <lionel.g.landwerlin@intel.com> (cherry picked from commit 5049fbdd)