Staging: comedi: drivers: fix coding style issues in das08.c

Staging: comedi: drivers: fix coding style issues in das08.c

This is a patch to the das08.c file that fixes up the following issues
found by the checkpatch.pl tool.

WARNING: line over 80 characters x 6
ERROR: code indent should use tabs where possible x 3
ERROR: spaces required around that '?' (ctx:VxV) x 4
ERROR: spaces required around that ':' (ctx:VxV) x 4
ERROR: that open brace { should be on the previous line x 1
WARNING: printk() should include KERN_ facility level x 9
WARNING: braces {} are not necessary for single statement blocks x 1
WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable x 2

Signed-off-by: Gustavo Silva <silvagustavo@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>