staging: comedi: mite.h: reformat some comments

Use the usual style for block comments.  Squash double spaces after
comment opening sequences.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>