[POWERPC] QE: UCC nodes cleanup

- get rid of `model = "UCC"' in the ucc nodes
  It isn't used anywhere, so remove it. If we'll ever need something
  like this, we'll use compatible property instead.
- replace last occurrences of device-id with cell-index.
  Drivers are modified for backward compatibility's sake.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 8cc3166..ed84182 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3852,7 +3852,13 @@
 
 	ugeth_vdbg("%s: IN", __FUNCTION__);
 
-	prop = of_get_property(np, "device-id", NULL);
+	prop = of_get_property(np, "cell-index", NULL);
+	if (!prop) {
+		prop = of_get_property(np, "device-id", NULL);
+		if (!prop)
+			return -ENODEV;
+	}
+
 	ucc_num = *prop - 1;
 	if ((ucc_num < 0) || (ucc_num > 7))
 		return -ENODEV;