Staging: comedi: Remove COMEDI_MODULES_MACRO

Add MODULE_AUTHOR, MODULE_LICENSE, and MODULE_DESCRIPTION calls
to the respective C source files instead of calling COMEDI_MODULES_MACRO

Signed-off-by: Arun Thomas <arun.thomas@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>