scsi: qla2xxx: Correction to vha->vref_count timeout

commit 6e98095f8fb6d98da34c4e6c34e69e7c638d79c0 upstream.

Fix incorrect second argument for wait_event_timeout()

Fixes: c4a9b538ab2a ("qla2xxx: Allow vref count to timeout on vport delete.")
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>