Currently the driver supports Qualcomm Soundwire controller versions
from v1.3 till v1.7 which mostly have same register layout.  With
coming Qualcomm Soundwire v2.0, several registers were moved and
changed, thus a different register layout will have to be supported.

Prepare for this by:
1. Renaming few register defines to indicate v1.3 (earliest supported)
   version,
2. Add a simple table for mapping register to its offset,
3. Change the code to use the mapping table.

Since only few registers differ, this solution seems easier then
switching to regmap fields.
Reviewed-by: Srinivas Kandagagatla <srinivas.kandagatla@linaro.org>
Tested-by: Srinivas Kandagagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230418095447.577001-6-krzysztof.kozlowski@linaro.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>