ASoC: soc-core: Fix the error return code in snd_soc_of_parse_audio_routing()

When devm_kcalloc() fails, the error code -ENOMEM should be returned
instead of -EINVAL.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210617103729.1918-1-thunder.leizhen@huawei.com


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