Char: cyclades, printk cleanups

- add printk KERN_ levels to each printk
- substitute printk with dev_* when device struct is available

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>