ASoC: loongson: Add the correct judgement return

Use the function dev_err_probe can simplify code, but
the error return should not be deleted, that is
unreasonable, thus fix it.

Fixes: 3d2528d6 ("ASoC: loongson: Simplify with dev_err_probe()")
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Link: https://patch.msgid.link/20240910021104.3400-1-tangbin@cmss.chinamobile.com


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