Compile media_build for LibreELEC / Odroid C2 (repack SYSTEM image):
Compile LibreELEC:
$ git clone https://github.com/anor-es/LibreELEC.tv.7.0.git
$ cd LibreELEC.tv.7.0
$ git checkout dvb_drivers
$ PROJECT=Odroid_C2 ARCH=aarch64 make release
$ cd ..
Then, compile media_build:
$ git clone https://github.com/anor-es/media_build-libreelec.git
$ cd media_build-libreelec
$ ./compile-media_build.sh
New repack file located in target directory
After first boot LibreELEC please do (via ssh session):
$ echo "3.14.65-media_build" > /storage/downloads/dvb-drivers.txt
$ reboot