[media] v4l2-ioctl: more -ENOTTY fixes

  explicitly instead of using a macro.
  ioctls and the ENUMSTD, S_STD and G_PARM ioctls.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>