ASoC: mediatek: Add HDMI dai-links to the mt8173-rt5650 machine driver

This patch adds HDMI audio output support to the MT8173 RT5650 machine
driver.

Signed-off-by: PC Liao <pc.liao@mediatek.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>