[media] dvb_frontend: Update the dynamic info->type

Instead of changing the ops.info.type struct, updates only
the data that will be returned to userspace.

Also add some debug messages to help tracking such issues.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --cc drivers/media/dvb/dvb-core/dvb_frontend.c
Simple merge