ASoC: n810: Let the core to register DAPM widgets/routes and controls

Pass the DAPM widgets/routes and static controls via the
snd_soc_card struct to core. In this way the machine driver
does not need to handle the DAPM widgets/routes.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>