Hi,
The usb2-1 + usb3-2 looks OK. The usb2-2 + usb3-0 may not work properly. We have seen issue in always-on VBUS pin. Some related topics:
USB1 and Installing kernel modules for LTE modem - #10 by DaneLLL
USB2 B43/B42 not working on TX1 with R28.2 - #2 by DaneLLL
And nvidia,oc-pin = <2>; is not right. We only have two oc-pin 0(A17) and 1(A18).
After booting to desktop, you can execute xxd to check correctness of device tree. One possible rootcause is that device tree is overwritten by plugin manager.