[POWERPC] Rename get_property to of_get_property: drivers

These are all the remaining instances of get_property.  Simple rename of
get_property to of_get_property.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c
index cc07aac..1724673 100644
--- a/drivers/ata/sata_svw.c
+++ b/drivers/ata/sata_svw.c
@@ -288,7 +288,7 @@
 	/* Match it to a port node */
 	index = (ap == ap->host->ports[0]) ? 0 : 1;
 	for (np = np->child; np != NULL; np = np->sibling) {
-		const u32 *reg = get_property(np, "reg", NULL);
+		const u32 *reg = of_get_property(np, "reg", NULL);
 		if (!reg)
 			continue;
 		if (index == *reg)