OMAPDSS: add output->name

Add name field to omapdss's outputs so that in the following patches
panels refer to the output by their name. The name also helps debugging.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 2cb2b0e..fa800b7 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -541,6 +541,8 @@
 struct omap_dss_output {
 	struct list_head list;
 
+	const char *name;
+
 	/* display type supported by the output */
 	enum omap_display_type type;