ASoC: mediatek: mt8173: reduce log verbosity in probe()

Eliminates error messages if snd_soc_register_card() failed.  Kernel
emits messages if device probe error anyway.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20211224064719.2031210-4-tzungbi@google.com


Signed-off-by: Mark Brown <broonie@kernel.org>