ASoC: codecs: do not store status in state containe

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

Many SoundWire CODEC drivers store the device status in a member
variable in the driver data but never reference this, and in any case
the SoundWire core stores this information for drivers so it would be
redundant even if used.