Nope. no paths have to be changed - but Rock pi4 needs special handling of emmc.
I did some tests with armbian.
Release 21.02.3 with kernel 5.10.21 boots right from emmc without special treatment.
Writing image with usb-emmc adapter is sufficient.
But no other linux-image I tried is able to boot from emmc.
armbian offers a dialog helper tool, which could enable kernel 4.4 to boot from emmc. But apparently, that helper tool changes boot code of rockpi board. I prepared a emmc with one rockpi and after mounting the emmc to another board, it did not boot.
Please take a spare SD card, flash the latest nightly (no update) on it and replace the device tree with the with this one: https://mega.nz/file/vHZ21D5R#…bzl2NgnAgXdUVYUJezmP6fPfo , where I increased that clock:
Could you please tell me, which value you changed to increase the clock?
I decompiled your file and did a diff to mine - but I only found lot of additional/changed phandles, my changes and the symbol list at the end (in my file).
As I changed dtb too, I'd like to do the changes manually.