[SCSI] libfc: RNN_ID may be required before RSNN_NN with some switches

One could interpret FC-GS-5 to say that an explicit RNN_ID is required
before RSNN_NN is allowed to succeed, which is why RNN_ID was not obsoleted
along with RPN_ID acording to this document:
ftp://ftp.t11.org/t11/member/fc/gs-5/05-546v2.pdf

Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 75be713..3d22dfd 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -61,6 +61,7 @@
 	LPORT_ST_DISABLED = 0,
 	LPORT_ST_FLOGI,
 	LPORT_ST_DNS,
+	LPORT_ST_RNN_ID,
 	LPORT_ST_RFT_ID,
 	LPORT_ST_SCR,
 	LPORT_ST_READY,