anv: don't use default pipeline cache for hits for VK_EXT_pipeline_creation_feedback

If the user didn't provide a pipeline cache and we're using the
default internal pipeline cache, then we shouldn't consider a cache
hit for VK_EXT_pipeline_creation_feedback as the application did not
provide a cache.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: 6601e5d6fc ("anv: implement VK_EXT_pipeline_creation_feedback")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

src/intel/vulkan/anv_pipeline_cache.c

@@ -621,7 +621,7 @@ anv_device_search_for_kernel(struct anv_device *device,
    if (cache) {
       bin = anv_pipeline_cache_search(cache, key_data, key_size);
       if (bin) {
-         *user_cache_hit = true;
+         *user_cache_hit = cache != &device->default_pipeline_cache;
          return bin;
       }
    }