V4L/DVB (3398): ELSA EX-VISION 700TV: fix incorrect PCI subsystem ID

- Corrected autodetection for saa7130 card:
  subsystem: 1048:226c, board: ELSA EX-VISION 700TV

Signed-off-by: TAMUKI Shoichi <tamuki@linet.gr.jp>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>