V4L/DVB (11680): cafe_ccic: use = instead of == for setting a value at a var

/home/v4l/master/v4l/cafe_ccic.c: In function 'cafe_cam_init':
/home/v4l/master/v4l/cafe_ccic.c:778: warning: statement with no effect

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: saeed bishara <saeed.bishara@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>