This patch avoids that building with W=1 triggers compiler
warnings similar to the following:

drivers/scsi/qla2xxx/qla_nx2.h:538:23: warning: ‘qla8044_reg_tbl’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Christoph Hellwig <hch@lst.de>