scsi: fix scsi_proc new kernel-doc warning

Fix kernel-doc warnings in scsi_proc.c:

  Warning(drivers/scsi/scsi_proc.c:390): No description found for parameter 'dev'
  Warning(drivers/scsi/scsi_proc.c:390): No description found for parameter 'data'
  Warning(drivers/scsi/scsi_proc.c:390): Excess function parameter 's' description in 'always_match'
  Warning(drivers/scsi/scsi_proc.c:390): Excess function parameter 'p' description in 'always_match'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>