scsi: imm: Add a module parameter for the transfer mode

Fix in the imm driver the same problem that was fixed in the ppa driver by
commit 68a4f84a ("scsi: ppa: Add a module parameter for the transfer
mode").

Tested and confirmed working with an Iomega Z250P zip drive and a StarTech
PEX1P2 AX99100 PCIe parallel port.

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Link: https://lore.kernel.org/r/20230831054620.515611-1-alexhenrie24@gmail.com


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