Demote the MBHC impedance measurement printk, which is only needed
for development and debugging, to debug level.

While at it, fix the capitalisation of "ohm" and add the missing space
before the opening parenthesis.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230630142717.5314-5-johan+linaro@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>