scsi: qla2xxx: Use true, false for ha->fw_dumped

Fix the following coccicheck warning:

drivers/scsi/qla2xxx/qla_tmpl.c:1120:2-20: WARNING: Assignment of 0/1 to
bool variable

Link: https://lore.kernel.org/r/20200430121800.15323-1-yanaijie@huawei.com


Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>