soundwire: qcom: demote probe registration printk

soundwire: qcom: demote probe registration printk

Driver should generally by quiet on successful probe.

Demote the Qualcomm controller registration info message to debug level
to make boot logs a little less noisy:

qcom-soundwire 6ab0000.soundwire: Qualcomm Soundwire controller v2.0.0 Registered
qcom-soundwire 6ad0000.soundwire: Qualcomm Soundwire controller v2.0.0 Registered
qcom-soundwire 6b10000.soundwire: Qualcomm Soundwire controller v2.0.0 Registered
qcom-soundwire 6d30000.soundwire: Qualcomm Soundwire controller v2.0.0 Registered

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250523085317.11439-1-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>