V4L/DVB (14003): gspca_cpai1: New gspca subdriver for CPIA CPiA version 1 cams

This new driver supports USB PIA CPiA version 1 cams, replacing the
old v4l1 driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>