ASoC: mchp-pdmc: return directly ret

Return directly ret instead of having different branches for error and
OK paths.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230301113807.24036-6-claudiu.beznea@microchip.com


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