bonding: convert primary to use the new option API

This patch adds the necessary changes so primary would use
the new bonding option API.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/bonding/bond_options.h

@@ -53,6 +53,7 @@ enum {
 	BOND_OPT_AD_SELECT,
 	BOND_OPT_NUM_PEER_NOTIF,
 	BOND_OPT_MIIMON,
+	BOND_OPT_PRIMARY,
 	BOND_OPT_LAST
 };
 
@@ -141,4 +142,6 @@ int bond_option_ad_select_set(struct bonding *bond,
 int bond_option_num_peer_notif_set(struct bonding *bond,
 				   struct bond_opt_value *newval);
 int bond_option_miimon_set(struct bonding *bond, struct bond_opt_value *newval);
+int bond_option_primary_set(struct bonding *bond,
+			    struct bond_opt_value *newval);
 #endif /* _BOND_OPTIONS_H */