[media] dib0700: fixup PLL config for PCTV 340e

Based on a reference trace under Windows, reverse engineer the PLL config.
Note that the xtal is not yet setup, and the timf cannot be determined yet
because my reference trace doesn't actually achieve a signal lock.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>