V4L/DVB (11976): em28xx: set up tda9887_conf in em28xx_card_setup()

Added tda9887_conf set up into em28xx_card_setup()

Signed-off-by: Franklin Meng <fmeng2002@yahoo.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>