cfg802154: add PM hooks

This patch help to implement suspend/resume in mac802154, these
hooks will be run before the device is suspended and after it
resumes.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 290a9a6..382f94b 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -34,6 +34,8 @@
 							   int type);
 	void	(*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
 					       struct net_device *dev);
+	int	(*suspend)(struct wpan_phy *wpan_phy);
+	int	(*resume)(struct wpan_phy *wpan_phy);
 	int	(*add_virtual_intf)(struct wpan_phy *wpan_phy,
 				    const char *name,
 				    unsigned char name_assign_type,