PDM: fix setGain() for dfsdm #948
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If the gain was too high, the right bit shift RecBuff[i] >> attenuation would result in undefined behaviour https://www.iso-9899.info/n1570.html#6.5.7 Take the chance to also fix the (approximate) conversion from gain (in dB) to bit shift
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If the gain was too high, the right bit shift
RecBuff[i] >> attenuationwould result in undefined behaviour
https://www.iso-9899.info/n1570.html#6.5.7
Take the chance to also fix the (approximate) conversion from gain (in dB) to bit shift