I made fresh git cloned 
$ git clone https://github.com/domino-team/domino-firmware

```
cd openwrt
mkdir package/domino
cp -a ../domino-firmware/domino-pi/audio/* package/domino
cp -a ../domino-firmware/domino-pi/domino-pi package/domino
cp -a ../domino-firmware/domino-pi/mpg123 package/domino
mkdir files
cp -a ../domino-firmware/domino-pi/root-files/* files
```
 

then run "make menuconfig"
Now domino-pi is showing as expected.

I think there was file permissions lost issue by git clone as you said.
Thank you very much.
Let me build the firmware and see .....

/jags