ieee802154: wpan-phy: use blank line after function

This patch adds a blank line after function declaration.
Signed-off-by: NAlexander Aring <alex.aring@gmail.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

include/net/wpan-phy.h

@@ -75,6 +75,7 @@ static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
 {
 	phy->dev.parent = dev;
 }
+
 int wpan_phy_register(struct wpan_phy *phy);
 void wpan_phy_unregister(struct wpan_phy *phy);
 void wpan_phy_free(struct wpan_phy *phy);