[SCSI] qla2xxx: Correct issue where incorrect init-fw mailbox command was used on non-NPIV capable ISPs.

BIT_2 of the firmware attributes is only valid on FW-interface-2
type HBAs.  Code in commit
c48339decceec8e011498b0fc4c7c7d8b2ea06c1 would cause the
incorrect initialize-firmware mailbox command to be issued for
non-NPIV capable ISPs.  Correct this by reverting to previously
used (and correct) pre-condition 'if' check.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 0c10c0b..99d29ff 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -980,7 +980,7 @@
 	DEBUG11(printk("qla2x00_init_firmware(%ld): entered.\n",
 	    ha->host_no));
 
-	if (ha->fw_attributes & BIT_2)
+	if (ha->flags.npiv_supported)
 		mcp->mb[0] = MBC_MID_INITIALIZE_FIRMWARE;
 	else
 		mcp->mb[0] = MBC_INITIALIZE_FIRMWARE;