Add digital support for the Pinnacle PCTV HD Pro 801e (usb id 2304:023a)

Thanks to Patrick Boettcher <patrick.boettcher@desy.de> for providing new
firmware fixing the issue with the i2c that prevented the xc5000 from working.
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>