V4L/DVB (6193): cx23885: define Video B Interrupt Status register bit values

- define missing register bit values for VID_B
- corrected VID/VBI_B_GPCNT_CTL register addresses

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>