ASoC: codecs: wcd938x: add audio routing and Kconfig

This patch adds audio routing for both playback and capture and
Makefile and Kconfigs changes for wcd938x

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210609090943.7896-10-srinivas.kandagatla@linaro.org


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