ruby: bugfix for MESI_Three_Level protocol

Since a3177645, the MESI_Three_Level protocol does not build. This
changeset addresses the problem by adding the L0Cache machine type
to the static machine type declaration in Ruby's export file.

Change-Id: I6327547fcb34595619caeb73932c0032f5f65c9f
Reviewed-on: https://gem5-review.googlesource.com/8383
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
1 file changed