V4L/DVB (3103): Add VIDIOC_LOG_STATUS to tuner-core.c

- Mark tda9887.c status log values as hexadecimal (add 0x prefix).
Add VIDIOC_LOG_STATUS support to tuner-core.c.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>