[media] DM04/QQBOX v1.84 added PID filter

A greatly simplified version of the PID Filter now added
back to the Driver.

The driver allows for the PID filter to be turned off.

applied after patch 683781.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>