V4L/DVB (5798): Dvb-pll: add support for Philips fcv1236d

This patch adds support to the dvb-pll library for the
Philips fcv1236d tuner, based on the FCV1236D datasheet.

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