Disable second adapter on LifeView TV Walker Twin while it doesn't work 
properly.
Signed-off-by: NAapo Tahkola <aet@rasterburn.org>
Signed-off-by: NNick Andrew <nick@nick-andrew.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>