[SCSI] libiscsi: Add local_ipaddr parameter in iscsi_conn struct

Add local_ipaddr param and support get/set operations on it.

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

include/scsi/libiscsi.h

@@ -231,6 +231,7 @@ struct iscsi_conn {
 	uint8_t			ipv6_traffic_class;
 	uint8_t			ipv6_flow_label;
 	uint8_t			is_fw_assigned_ipv6;
+	char			*local_ipaddr;
 
 	/* MIB-statistics */
 	uint64_t		txdata_octets;