V4L/DVB (8236): cx23885: add support for new revision of FusionHDTV7 Dual Express

The new revision of this board uses the same pci subsystem id as the first
revision, but uses a S5H1411 demodulator instead of the S5H1409.

In the case of the FusionHDTV7 Dual Express,
if s5h1409_attach fails, try s5h1411_attach.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>