staging: comedi: remove all 'default N' in Kconfig

Remove all the 'default N' lines in the comedi Kconfig. They should all
be 'default n' but that is the default anyway.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>