Nope definitely not and such a shame for a SoC with embedded VAD, ADC, Codec and a host of audio interfaces to allow it.
You will find me lower down in the thread
Really you should be able to utilise the ADC as this evb board and have 2 spare ADC inputs so you can use as loopbacks to sync AEC algs.
The ADC maybe due to tiny design and not enough isolation on the audio just isn’t capable as whatever you do there is a huge amount of noise and turning of the radio just negates its use so isn’t a solution.