The rt5514 dsp captures pcm data through spi directly, so we should not
use rockchip-i2s as it's cpu dai like other codecs.

Use dummy_dai for rt5514 dsp dailink to make voice wakeup work again.
Reported-by: NJimmy Cheng-Yi Chiang <cychiang@google.com>
Fixes: (72cfb0f2 ASoC: rockchip: Use codec of_node and dai_name for rt5514 dsp)
Signed-off-by: NJeffy Chen <jeffy.chen@rock-chips.com>
Tested-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NMark Brown <broonie@kernel.org>