ASoC: regmap: soundwire: fix incorrect register writes

Soundwire register writes are called with incorrect
register address and value. Fix the same by updating
register address and value properly.

Change-Id: If4fd97ca63ddcef2765d9d595c8f04d024926961
Signed-off-by: Vidyakumar Athota <vathota@codeaurora.org>