[mvmult] fix test harness bug for DummyCOP
[mvmult] fix test harness bug for DummyCOP

jjffryan/pymtl,cornell-brg/pymtl,tj93/pymtl,cfelton/pymtl,12yujim/pymtl,12yujim/pymtl,jjffryan/pymtl,cfelton/pymtl,tj93/pymtl,cfelton/pymtl,cornell-brg/pymtl,jck/pymtl,tj93/pymtl,jck/pymtl,jck/pymtl,jjffryan/pymtl,cornell-brg/pymtl,Glyfina-Fernando/pymtl,12yujim/pymtl,Glyfina-Fernando/pymtl,Glyfina-Fernando/pymtl