[lime-dev] retrieve release information

Hi, I'm trying to find a generic way to find the currently installed release. On standard LEDE I'm using `ubus call system board` and check the `release` section. On Libremesh a look at /etc/lime_release provides the information. Is it possible to modify the ubus output to give the same information as lime_release does? The most simple solution could be to modify the /etc/openwrt_release file. Thanks in advance! Best, Paul