scsi: qla2xxx: Increase abort timeout value

Abort IOCB request can take up to 40s or 2 ABTS timeout.  We will wait for
ABTS response for 20s. On a timeout, second ABTS can go out with another 20s
timeout. On 2nd ABTS timeout FW will automatically do Logout.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>