tools/btpclient: Fix ad property manufacturer data name

This patch fixes wrong naming of advertising instance data property.
diff --git a/tools/btpclient.c b/tools/btpclient.c
index 097732e..61bde82 100644
--- a/tools/btpclient.c
+++ b/tools/btpclient.c
@@ -971,7 +971,7 @@
 						ad_serviceuuids_getter, NULL);
 	l_dbus_interface_property(interface, "ServiceData", 0, "a{sv}",
 						ad_servicedata_getter, NULL);
-	l_dbus_interface_property(interface, "ManufacturerServiceData", 0,
+	l_dbus_interface_property(interface, "ManufacturerData", 0,
 					"a{qv}", ad_manufacturerdata_getter,
 					NULL);
 	l_dbus_interface_property(interface, "Includes", 0, "as",