staging: wimax: fix code style issues

Fixes 'WARNING: Missing a blank line after declarations' generated by
checkpatch.pl script.
Signed-off-by: Hassan Shahbazi <h.shahbazi.git@gmail.com>
Link: https://lore.kernel.org/r/20210223064227.62631-1-h.shahbazi.git@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wimax/stack.c

@@ -142,6 +142,7 @@ int wimax_gnl_re_state_change_send(
 {
 	int result = 0;
 	struct device *dev = wimax_dev_to_dev(wimax_dev);
+
 	d_fnstart(3, dev, "(wimax_dev %p report_skb %p)\n",
 		  wimax_dev, report_skb);
 	if (report_skb == NULL) {
@@ -348,6 +349,7 @@ EXPORT_SYMBOL_GPL(wimax_state_change);
 enum wimax_st wimax_state_get(struct wimax_dev *wimax_dev)
 {
 	enum wimax_st state;
+
 	mutex_lock(&wimax_dev->mutex);
 	state = wimax_dev->state;
 	mutex_unlock(&wimax_dev->mutex);