V4L/DVB (12287): dvb-pll: Add Samsung TDTC9251DH0 DVB-T NIM

No datasheet, tuner data comes from code in flexcop driver.  This tuner is
also used on the AVerTV 771 supported by the bttv driver, but that code
uses a different tuner configuration, which is surprising.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>