Allo Piano 2.1 support

[Sunfish]

I've spent serious time investigating and experimenting to get the Piano 2.1 working with the new kernel. So far no luck. Also other programs with the new kernels stop working at the moment the dtoverlay for the Allo Piano is in the config.txt.
My advise is to try another Dac. I'm looking for the I-sabre ES9038Q2M as that one is apparently also working with the Allo Kali.

Regards
Wim