This patch move the loop_thru configuration to the attach function,
because with dual tuners until loop_tru configuration the other tuner
don't work.
Signed-off-by: NJose Alberto Reguero <jareguero@telefonica.net>
Reviewed-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>