Revert "V4L/DVB (10962): fired-avc: fix printk formatting warning."

Commit 34aecd28 was made obsolete
and invalid by commit 40cf65d1.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>