lpfc: Vport creation is failing with "Link

lpfc: Vport creation is failing with "Link

[backport of f0b2223a666e93c84fd42a0c5dad8a17c08aa869]
From: rkennedy <dick.kennedy@avagotech.com>

Orabug: 26439257

Vport creation fails for SLI-3 adapters.

Mailbox submission fails because mailbox interrupt is disabled. Mailbox
interrupt is disabled during port reset.

Do reset only for physical port.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Brian Maly <brian.maly@oracle.com>