ASoC: mediatek: mt8195: update audio tuner settings

Audio tuner is used to handle clock drift between 26M and APLL domain.

It's expected when abs(chg_cnt) equals to upper bound, tuner updates pcw
setting automatically, and then abs(chg_cnt) decreases.
In the stress test, we found abs(chg_cnt) possibly equals to 2 at the
unexpected timing. This results in wrong pcw updating.
Finally, abs(chg_cnt) will always be larger than upper bound,

As a result, we update the upper bound to 3 to handle the corner case.

Signed-off-by: Trevor Wu <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

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