Added ADC control pin automatic logic switch function for Heltec LoRa 32 V3 #5196
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In version V3.2, the ADC control pin is changed from MOS-FET to triode, which will optimize the low power consumption of LoRa 32 about 6~7uA. The logic of ADC_Ctrl is changed from
LOW enable
toHIGH enable
.The added code will automatically identify the pin control logic.