Staging: Comedi: Lindent changes to comdi driver in staging tree

Lindent changes to comdi driver in staging tree.
This patch is followed by the checkpatch.pl error fixes.
Did not make them part of this patch as the patch size is already huge.

Signed-off-by: Mithlesh Thukral <mithlesh@linsyssoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>