egl/wayland: set correct format with wl_dmabuf as wl_drm is missing

For most/all cases today, we have wl_drm available alongside wl_dmabuf.
Yet in the long run, we want to make sure the latter can operate without
any traces of the former.

Fixes: 02cc359372 ("egl/wayland: Use linux-dmabuf interface for buffers")
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>

src/egl/drivers/dri2/platform_wayland.c

@@ -145,7 +145,7 @@ dri2_wl_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
    if (!_eglInitSurface(&dri2_surf->base, disp, EGL_WINDOW_BIT, conf, attrib_list))
       goto cleanup_surf;
 
-   if (dri2_dpy->wl_drm) {
+   if (dri2_dpy->wl_dmabuf || dri2_dpy->wl_drm) {
       if (conf->RedSize == 5)
          dri2_surf->format = WL_DRM_FORMAT_RGB565;
       else if (conf->AlphaSize == 0)