ASoC: codecs: wsa88xx and wcd93xx: Soundwire port

Merge series from Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>:

Few cleanups to make the code more robust or readable.  No functional
impact (compiled objects stay the same).

diff --cc sound/soc/codecs/wsa881x.c
Simple merge

diff --cc sound/soc/codecs/wsa883x.c
Simple merge

diff --cc sound/soc/codecs/wsa884x.c
Simple merge