scsi: ufs: bsg: Fix all kernel-doc warnings

scsi: ufs: bsg: Fix all kernel-doc warnings

In struct utp_upiu_query_v4_0, add description for @osf3 and mark the
@reserved field as private so that no description is needed for it.

In struct utp_upiu_cmd, use the correct struct member name to eliminate a
kernel-doc warning.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240424055316.1384-1-rdunlap@infradead.org
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>