ASoC: mediatek: Add AFE platform driver

This is the DPCM based platform driver of AFE (Audio Front End) unit.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
7 files changed