Device properties framework fix for 5.1-rc2

Add missing "static" in two places (YueHaibing).
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Merge tag 'devprop-5.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull device properties framework fix from Rafael Wysocki:
 "Add missing 'static' in two places (YueHaibing)"

* tag 'devprop-5.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  drivers: base: swnode: Make two functions static

drivers/base/swnode.c

@@ -472,7 +472,7 @@ static int software_node_read_string_array(const struct fwnode_handle *fwnode,
 						val, nval);
 }
 
-struct fwnode_handle *
+static struct fwnode_handle *
 software_node_get_parent(const struct fwnode_handle *fwnode)
 {
 	struct software_node *swnode = to_software_node(fwnode);
@@ -481,7 +481,7 @@ software_node_get_parent(const struct fwnode_handle *fwnode)
 			NULL;
 }
 
-struct fwnode_handle *
+static struct fwnode_handle *
 software_node_get_next_child(const struct fwnode_handle *fwnode,
 			     struct fwnode_handle *child)
 {