Change the readout source for the required information from '/etc/openwrt_release' to '/usr/lib/os-release'. This is a preparatory commit to read the build date from '/usr/lib/os-release'.
Add build date to ubus output
For this to work, a change is needed in the build system that writes the build date to the /usr/lib/os-release' file.
This pullrequest consists of two changes.
For this to work, a change is needed in the build system that writes the build date to the /usr/lib/os-release' file.