Set Renode target to be no-gui
When building Renode from source, set --no-gui flag so we don't need
the deprecated gtk-sharp2 Debian package (removed from Debian Testing)
Change-Id: I844694764f82b9162d4fba58b1bbc586e40339df
This is the project containing all the top-level build targets of all the projects within the GoB to set up the environment and build the e2e artifacts.