scsi: esp: Fix variable typo

Renamed ESP_CONGIG4_TEST to ESP_CONFIG4_TEST

Signed-off-by: Siddharth Menon <simeddon@gmail.com>
Link: https://lore.kernel.org/r/20241210040202.11112-1-simeddon@gmail.com


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