ASoC: codecs: Add jz4770-codec driver

Add jz4770-codec driver to support the internal CODEC found in the
JZ4770 SoC from Ingenic.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Link: https://lore.kernel.org/r/20191224002708.1207884-2-paul@crapouillou.net


Signed-off-by: Mark Brown <broonie@kernel.org>