V4L/DVB (3308): Use parallel transport for FusionHDTV Dual Digital USB

Use the parallel transport function of the MT352 in USB demodulator of the
Dual Digital board.

Signed-off-by: Chris Pascoe <c.pascoe@itee.uq.edu.au>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>