V4L/DVB (4501): Add support for knc one dvb-s plus with 1894:0011

Apparently there are two types of knc1 dvb-s plus cards with different tuners 
(as for the knc1 dvb-s ones). This patch adds support for those cards with 
subsystem id 1894:0011.
Successfully tested by: Benjamin Weber <benny1990@gmail.com>

Signed-off-by: Christoph Pfister <christophpfister@gmail.com>
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>