ASoC: rt1016: return cache sync errors from resume

rt1016_resume() restores cached registers during component resume but
discards the regcache_sync() result and returns success. A failed replay
can therefore leave the hardware register state stale without reaching
the component error reporting path.

Return the cache synchronization result. The ASoC component wrapper
reports a negative callback result and retains the established
best-effort resume state, so this adds observability without introducing
rollback or retry semantics.

The successful resume path is unchanged.

The issue was found by a tool we developed.

Fixes: 79a4b670b4b4 ("ASoC: rt1016: Add the rt1016 support")
Assisted-by: gpt 5
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260902013256.93072-8-pengpeng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>

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