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

 drivers/scsi/myrb.c:91: warning: Function parameter or member 'pdev' not described in 'myrb_create_mempools'
 drivers/scsi/myrb.c:91: warning: Function parameter or member 'cb' not described in 'myrb_create_mempools'
 drivers/scsi/myrb.c:141: warning: Function parameter or member 'cb' not described in 'myrb_destroy_mempools'
 drivers/scsi/myrb.c:153: warning: Function parameter or member 'cmd_blk' not described in 'myrb_reset_cmd'
 drivers/scsi/myrb.c:164: warning: Function parameter or member 'cb' not described in 'myrb_qcmd'
 drivers/scsi/myrb.c:164: warning: Function parameter or member 'cmd_blk' not described in 'myrb_qcmd'
 drivers/scsi/myrb.c:187: warning: Function parameter or member 'cb' not described in 'myrb_exec_cmd'
 drivers/scsi/myrb.c:187: warning: Function parameter or member 'cmd_blk' not described in 'myrb_exec_cmd'
 drivers/scsi/myrb.c:208: warning: Function parameter or member 'cb' not described in 'myrb_exec_type3'
 drivers/scsi/myrb.c:208: warning: Function parameter or member 'op' not described in 'myrb_exec_type3'
 drivers/scsi/myrb.c:208: warning: Function parameter or member 'addr' not described in 'myrb_exec_type3'
 drivers/scsi/myrb.c:231: warning: Function parameter or member 'cb' not described in 'myrb_exec_type3D'
 drivers/scsi/myrb.c:231: warning: Function parameter or member 'op' not described in 'myrb_exec_type3D'
 drivers/scsi/myrb.c:231: warning: Function parameter or member 'sdev' not described in 'myrb_exec_type3D'
 drivers/scsi/myrb.c:231: warning: Function parameter or member 'pdev_info' not described in 'myrb_exec_type3D'
 drivers/scsi/myrb.c:341: warning: Function parameter or member 'cb' not described in 'myrb_get_errtable'
 drivers/scsi/myrb.c:388: warning: Function parameter or member 'cb' not described in 'myrb_get_ldev_info'
 drivers/scsi/myrb.c:440: warning: Function parameter or member 'cb' not described in 'myrb_get_rbld_progress'
 drivers/scsi/myrb.c:440: warning: Function parameter or member 'rbld' not described in 'myrb_get_rbld_progress'
 drivers/scsi/myrb.c:472: warning: Function parameter or member 'cb' not described in 'myrb_update_rbld_progress'
 drivers/scsi/myrb.c:533: warning: Function parameter or member 'cb' not described in 'myrb_get_cc_progress'
 drivers/scsi/myrb.c:580: warning: Function parameter or member 'cb' not described in 'myrb_bgi_control'
 drivers/scsi/myrb.c:671: warning: Function parameter or member 'cb' not described in 'myrb_hba_enquiry'
 drivers/scsi/myrb.c:782: warning: Function parameter or member 'cb' not described in 'myrb_set_pdev_state'
 drivers/scsi/myrb.c:782: warning: Function parameter or member 'sdev' not described in 'myrb_set_pdev_state'
 drivers/scsi/myrb.c:782: warning: Function parameter or member 'state' not described in 'myrb_set_pdev_state'
 drivers/scsi/myrb.c:808: warning: Function parameter or member 'cb' not described in 'myrb_enable_mmio'
 drivers/scsi/myrb.c:808: warning: Function parameter or member 'mmio_init_fn' not described in 'myrb_enable_mmio'
 drivers/scsi/myrb.c:913: warning: Function parameter or member 'cb' not described in 'myrb_get_hba_config'
 drivers/scsi/myrb.c:1200: warning: Function parameter or member 'cb' not described in 'myrb_unmap'
 drivers/scsi/myrb.c:1236: warning: Function parameter or member 'cb' not described in 'myrb_cleanup'
 drivers/scsi/myrb.c:2249: warning: Function parameter or member 'dev' not described in 'myrb_is_raid'
 drivers/scsi/myrb.c:2260: warning: Function parameter or member 'dev' not described in 'myrb_get_resync'
 drivers/scsi/myrb.c:2287: warning: Function parameter or member 'dev' not described in 'myrb_get_state'
 drivers/scsi/myrb.c:2493: warning: Function parameter or member 'cb' not described in 'myrb_err_status'
 drivers/scsi/myrb.c:2493: warning: Function parameter or member 'error' not described in 'myrb_err_status'
 drivers/scsi/myrb.c:2493: warning: Function parameter or member 'parm0' not described in 'myrb_err_status'
 drivers/scsi/myrb.c:2493: warning: Function parameter or member 'parm1' not described in 'myrb_err_status'

Link: https://lore.kernel.org/r/20210317091230.2912389-2-lee.jones@linaro.org
Cc: Hannes Reinecke <hare@kernel.org>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Linux GmbH <hare@suse.com>
Cc: "Leonard N. Zubkoff" <lnz@dandelion.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>