[POWERPC] Update device tree binding for mpc5200 gpt

Add 'fsl,' prefix to 'compatible' property for gpt nodes.
Add 'fsl,' prefix to empty, GPT0 specific 'has-wdt' property.
The fsl, prefix is being added to better match the convention of prefixing
manufacturer specific properties and values with the vendors name.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/watchdog/mpc5200_wdt.c b/drivers/watchdog/mpc5200_wdt.c
index 9cfb975..11f6a11 100644
--- a/drivers/watchdog/mpc5200_wdt.c
+++ b/drivers/watchdog/mpc5200_wdt.c
@@ -176,6 +176,8 @@
 
 	has_wdt = of_get_property(op->node, "has-wdt", NULL);
 	if (!has_wdt)
+		has_wdt = of_get_property(op->node, "fsl,has-wdt", NULL);
+	if (!has_wdt)
 		return -ENODEV;
 
 	wdt = kzalloc(sizeof(*wdt), GFP_KERNEL);
@@ -254,6 +256,7 @@
 
 static struct of_device_id mpc5200_wdt_match[] = {
 	{ .compatible = "mpc5200-gpt", },
+	{ .compatible = "fsl,mpc5200-gpt", },
 	{},
 };
 static struct of_platform_driver mpc5200_wdt_driver = {