OMAPDSS: set suppress_bind_attrs

omapdss drivers cannot handle devices being unbound while the devices
are part of a connected display pipeline. Module refcounts are used to
prevent unloading the modules, but one can still manually unbind the
devices via sysfs, causing crash.

Set suppress_bind_attrs to disable the bind/unbind support via sysfs.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/fbdev/omap2/dss/dpi.c b/drivers/video/fbdev/omap2/dss/dpi.c
index 9368972..4a3363d 100644
--- a/drivers/video/fbdev/omap2/dss/dpi.c
+++ b/drivers/video/fbdev/omap2/dss/dpi.c
@@ -720,6 +720,7 @@
 	.driver         = {
 		.name   = "omapdss_dpi",
 		.owner  = THIS_MODULE,
+		.suppress_bind_attrs = true,
 	},
 };