scsi: mvumi: Fix formatting and doc-rot issues

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/mvumi.c:191: warning: Function parameter or member 'sg_count' not described in 'mvumi_make_sgl'
 drivers/scsi/mvumi.c:1301: warning: Function parameter or member 'ob_frame' not described in 'mvumi_complete_cmd'
 drivers/scsi/mvumi.c:2084: warning: Function parameter or member 'shost' not described in 'mvumi_queue_command'
 drivers/scsi/mvumi.c:2084: warning: Excess function parameter 'done' description in 'mvumi_queue_command'

Link: https://lore.kernel.org/r/20210317091230.2912389-4-lee.jones@linaro.org


Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Marvell <jyli@marvell.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>