v3d: fix resource leak in error path

Do not leak pipe resource if scanout resource creation fails.

Fixes: bf6973199d ("v3d: Allow the UIF modifier with renderonly.")
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10643>

src/gallium/drivers/v3d/v3d_resource.c

@@ -808,7 +808,7 @@ v3d_resource_create_with_modifiers(struct pipe_screen *pscreen,
 
                 if (!rsc->scanout) {
                         fprintf(stderr, "Failed to create scanout resource\n");
-                        return NULL;
+                        goto fail;
                 }
                 assert(handle.type == WINSYS_HANDLE_TYPE_FD);
                 rsc->bo = v3d_bo_open_dmabuf(screen, handle.handle);