scsi: megaraid: Fix a kernel-doc warning

Fix the following kernel-doc warning:

drivers/scsi/megaraid/megaraid_mbox.c:1439: warning: Excess function parameter 'done' description in 'megaraid_queue_command_lck'

Link: https://lore.kernel.org/r/20211129194609.3466071-10-bvanassche@acm.org
Fixes: af049dfd

 ("scsi: core: Remove the 'done' argument from SCSI queuecommand_lck functions")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>