scsi: qla2xxx: Correctly retrieve and interpret active flash region

scsi: qla2xxx: Correctly retrieve and interpret active flash region

ISP27XX/28XX supports multiple flash regions. This patch fixes issue where
active flash region was not interpreted correctly during secure flash
update process.

[mkp: typo]

Fixes: b8cdfea777a56 ("scsi: qla2xxx: Add 28xx flash primary/secondary status/image mechanism")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191203223657.22109-2-hmadhani@marvell.com
Signed-off-by: Michael Hernandez <mhernandez@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>