gl-renderer: Add <platform_attribs> param to gl_renderer_display_create

This change adds <platform_attribs> parameter to
gl_renderer_display_create() in case we ever want to pass non-NULL.

Signed-off-by: Miguel A Vico Moya <mvicomoya@nvidia.com>
Reviewed-by: Andy Ritger <aritger@nvidia.com>
Reviewed-by: James Jones <jajones@nvidia.com>
[Pekka: removed notes about EGLOutput]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
diff --git a/libweston/compositor-x11.c b/libweston/compositor-x11.c
index 0804591..ea77f31 100644
--- a/libweston/compositor-x11.c
+++ b/libweston/compositor-x11.c
@@ -1647,7 +1647,7 @@
 		return -1;
 
 	ret = gl_renderer->display_create(b->compositor, EGL_PLATFORM_X11_KHR,
-					  (void *) b->dpy,
+					  (void *) b->dpy, NULL,
 					  gl_renderer->opaque_attribs, NULL, 0);
 
 	return ret;