drivers: msm: video: add dev_set_name call

This is required before the driver can successfully be registered.

Adapted from Arve Hjønnevåg <arve@android.com> changes in the Google tree.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
diff --git a/drivers/video/msm/mdp.c b/drivers/video/msm/mdp.c
index 2b5bf79..c3636d5 100644
--- a/drivers/video/msm/mdp.c
+++ b/drivers/video/msm/mdp.c
@@ -482,6 +482,7 @@
 	/* register mdp device */
 	mdp->mdp_dev.dev.parent = &pdev->dev;
 	mdp->mdp_dev.dev.class = mdp_class;
+	dev_set_name(&mdp->mdp_dev.dev, "mdp%d", pdev->id);
 
 	/* if you can remove the platform device you'd have to implement
 	 * this: