python,scons,mem-ruby: Tag origin of generated files

This will make it easier to backtrack and modify
such files when needed.

Change-Id: If09b6f848e607fb21a0acf2114ce0b9b0aa4751f
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/47301
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
5 files changed