Yes, this versions for NanoPi Neo3 can work with external master-clock and SPDIF-out. You can enable/disable this features through armbianEnv.txt (SPDIF enabled by default).
After change some parameter in dts (e.g. master-clock values) you must recompile it:
dtc -@ -q -I dts -O dtb -o rockchip-i2s-external-mclk.dtbo rockchip-i2s-external-mclk.dts