V4L/DVB (12289): dvb-pll: Add support for Samsung TBMU24112 DVB-S NIM

Tuner parameters determined from code in flexcop driver.  That code rounded
the divisor down instead of to the nearest value.  This was probably not
intentional and the dvb-pll version will round to nearest.

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