V4L/DVB (6231): dvb-pll: always show pll name if forced via insmod option

The name of the pll will be shown if forced via insmod option,
or if debug is enabled.

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