bootstrap/linux: Add empty bootstrapper for the NONE distro
bootstrap/linux: Add empty bootstrapper for the NONE distro

This is useful when targetting embedded Linux systems which don't
include anything useful anyway.

fluendo/cerbero,EricssonResearch/cerbero,atsushieno/cerbero,atsushieno/cerbero,justinjoy/cerbero,GStreamer/cerbero,atsushieno/cerbero,EricssonResearch/cerbero,justinjoy/cerbero,centricular/cerbero,shoreflyer/cerbero,shoreflyer/cerbero,GStreamer/cerbero,flexVDI/cerbero,centricular/cerbero,OptoFidelity/cerbero,GStreamer/cerbero,flexVDI/cerbero,EricssonResearch/cerbero,nirbheek/cerbero,fluendo/cerbero,OptoFidelity/cerbero,atsushieno/cerbero,fluendo/cerbero,justinjoy/cerbero,fluendo/cerbero,OptoFidelity/cerbero,atsushieno/cerbero,centricular/cerbero,shoreflyer/cerbero,EricssonResearch/cerbero,OptoFidelity/cerbero,justinjoy/cerbero,flexVDI/cerbero,nirbheek/cerbero,centricular/cerbero,shoreflyer/cerbero,flexVDI/cerbero,EricssonResearch/cerbero,flexVDI/cerbero,fluendo/cerbero,nirbheek/cerbero,shoreflyer/cerbero,centricular/cerbero,nirbheek/cerbero,GStreamer/cerbero,GStreamer/cerbero