Staging: comedi: fix KERN_facility level coding style issue in adl_pci9118.c

This is a patch to the adl_pci9118.c file that fixes WARNING: printk() should include KERN_facility level found by the checkpatch.pl tool

Signed-off-by: Maurice Dawson <mauricedawson2699@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>