More generic fdo-client-linuxapp.service

[jbenc]

fdo-client-linuxapp.service expects its config files in /boot and has hard coded expectations how the manufacturing client is run. This does not work in environments where /boot is read only (such as bootc). The unit doesn't fail, since those ExecStart* commands start with "-" but it's too specific to a particular deployment and more importantly, it cannot be configured for other environments.

I acknowledge the file is in the examples directory and the intent may not be taking it verbatim. However, the file is packaged in the client RPM, which also suggests it is intended for production use.