[SCSI] libfc: add FC-BB-5 LESB counters to fcoe_dev_stats

FC-BB-5 Rev2.0, Clause 7.10 extends the FC-LS-3 LESB for FC-BB_E. We are
already tracking Link Failure Count so add the rest in this patch.

For VLinkFailureCount and MissDiscAdvCount, they are part of the per-cpu
fcoe_dev_stats. For SymbolErrorCount, ErroredBlockCount, and FCSErrorCount,
they are defined in IEEE 802.3-2008 and are per LLD. They are expected to
come from LLD.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

include/scsi/libfc.h

@@ -231,6 +231,8 @@ struct fc_rport_priv {
  * @ControlRequests:       Number of control requests
  * @InputMegabytes:        Number of received megabytes
  * @OutputMegabytes:       Number of transmitted megabytes
+ * @VLinkFailureCount:     Number of virtual link failures
+ * @MissDiscAdvCount:      Number of missing FIP discovery advertisement
  */
 struct fcoe_dev_stats {
 	u64		SecondsSinceLastReset;
@@ -249,6 +251,8 @@ struct fcoe_dev_stats {
 	u64		ControlRequests;
 	u64		InputMegabytes;
 	u64		OutputMegabytes;
+	u64		VLinkFailureCount;
+	u64		MissDiscAdvCount;
 };
 
 /**