misc: add comment on unused minors
misc: add comment on unused minors

Signed-off-by: Lucas De Marchi <06f6c196cc495faed3f1e11c3fa8ee6602a37ebc@intel.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs