ASoC: zte: zx-spdif: remove redundant dev_err message

devm_ioremap_resource has already contains error message, so remove
the redundant dev_err message

Signed-off-by: tangbin <tangbin@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20200227150701.15652-1-tangbin@cmss.chinamobile.com


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