gl-renderer: Rename gl_renderer::output_create to output_window_create

No functional change. This patch renames gl_renderer_output_create() to
gl_renderer_output_window_create(), which is something more descriptive
of what the function does.

Signed-off-by: Miguel A Vico Moya <mvicomoya@nvidia.com>
Reviewed-by: Andy Ritger <aritger@nvidia.com>
Reviewed-by: James Jones <jajones@nvidia.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
diff --git a/libweston/compositor-drm.c b/libweston/compositor-drm.c
index be782be..41ad9de 100644
--- a/libweston/compositor-drm.c
+++ b/libweston/compositor-drm.c
@@ -1836,12 +1836,12 @@
 
 	if (format[1])
 		n_formats = 2;
-	if (gl_renderer->output_create(&output->base,
-				       (EGLNativeWindowType)output->gbm_surface,
-				       output->gbm_surface,
-				       gl_renderer->opaque_attribs,
-				       format,
-				       n_formats) < 0) {
+	if (gl_renderer->output_window_create(&output->base,
+					      (EGLNativeWindowType)output->gbm_surface,
+					      output->gbm_surface,
+					      gl_renderer->opaque_attribs,
+					      format,
+					      n_formats) < 0) {
 		weston_log("failed to create gl renderer output state\n");
 		gbm_surface_destroy(output->gbm_surface);
 		return -1;