staging: dgap: re-factor some more code for 80+ lines

This patch fixes more 80+ char lines as reported by checkpatch

Signed-off-by: Mark Hounschell <markh@compro.net>
Tested-by: Mark Hounschell <markh@compro.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>