V4L/DVB (6295): saa7134: add autodetection for KWorld ATSC-115

Recognize the KWorld ATSC115 PCI ID as a hardware clone of the ATSC110.

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