iris: Use devinfo::has_flat_ccs instead of verx10

The assumption that GFX12.5 devices don't have AUX map is
invalid since MTL's introduction.

Signed-off-by: Jianxun Zhang <jianxun.zhang@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20043>

src/gallium/drivers/iris/iris_resource.c

@@ -764,7 +764,7 @@ iris_get_ccs_surf_or_support(const struct isl_device *dev,
       ccs_surf = aux_surf;
    }
 
-   if (dev->info->verx10 >= 125) {
+   if (dev->info->has_flat_ccs) {
       /* CCS doesn't require VMA on XeHP. So, instead of creating a separate
        * surface, we can just return whether CCS is supported for the given
        * input surfaces.
@@ -868,7 +868,7 @@ iris_resource_configure_aux(struct iris_screen *screen,
          assert(res->aux.usage != ISL_AUX_USAGE_STC_CCS);
          initial_state =
             isl_drm_modifier_get_default_aux_state(res->mod_info->modifier);
-      } else if (devinfo->verx10 >= 125) {
+      } else if (devinfo->has_flat_ccs) {
          assert(res->aux.surf.size_B == 0);
          /* From Bspec 47709, "MCS/CCS Buffers for Render Target(s)":
           *