soundwire: bus: clean up probe warnings

Clean up the probe warning messages by using a common succinct and
greppable format (e.g. without __func__ and with a space after ':').

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240712140801.24267-4-johan+linaro@kernel.org


Signed-off-by: Vinod Koul <vkoul@kernel.org>