gl-renderer: Rename <attribs> param of gl_renderer to <config_attribs>

This change renames <attribs> parameter of gl_renderer_display_create()
and gl_renderer_output_window_create() to <config_attribs> to explain
which attribs it is.

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: remove notes about EGLOutput]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
diff --git a/libweston/gl-renderer.h b/libweston/gl-renderer.h
index ee32790..1835d25 100644
--- a/libweston/gl-renderer.h
+++ b/libweston/gl-renderer.h
@@ -63,7 +63,7 @@
 	int (*display_create)(struct weston_compositor *ec,
 			      EGLenum platform,
 			      void *native_window,
-			      const EGLint *attribs,
+			      const EGLint *config_attribs,
 			      const EGLint *visual_id,
 			      const int n_ids);
 
@@ -72,7 +72,7 @@
 	int (*output_window_create)(struct weston_output *output,
 				    EGLNativeWindowType window_for_legacy,
 				    void *window_for_platform,
-				    const EGLint *attribs,
+				    const EGLint *config_attribs,
 				    const EGLint *visual_id,
 				    const int n_ids);