[SPARC64]: Fix PCI rework to adhere to of_get_property() const return.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index f18eec6..9ac9a30 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -317,7 +317,7 @@
 static int of_bus_pci_match(struct device_node *np)
 {
 	if (!strcmp(np->type, "pci") || !strcmp(np->type, "pciex")) {
-		char *model = of_get_property(np, "model", NULL);
+		const char *model = of_get_property(np, "model", NULL);
 
 		if (model && !strcmp(model, "SUNW,simba"))
 			return 0;
@@ -339,7 +339,7 @@
 
 static int of_bus_simba_match(struct device_node *np)
 {
-	char *model = of_get_property(np, "model", NULL);
+	const char *model = of_get_property(np, "model", NULL);
 
 	if (model && !strcmp(model, "SUNW,simba"))
 		return 1;