media: camss: vfe: Decrease priority of of VFE HW version to 'dbg'

The HW Version can in no case represent an error, so change the print
priority to 'dbg'.

Signed-off-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>