Added ADC support for the Arduino platform
Refactored qk_adc_read (for Arduino Uno) to prevent unwanted cpu awakenings to cause erroneous ADC read
Correct implementation of the ADC Noise Reduction (Sleep) Mode for Arduino
preventing unwanted CPU awakenings to cause ADC read data corruption
qk_mcu_finalizeadded to EFM32
Merge branch 'master' of https://github.com/zml/qkperipheral into test
qk_uart minor edits
implementation of arduino's qk_adc_read()
Merge branch 'test'