btl/vader: fix finalize sequence#6651

hppritcha merged 2 commits intoopen-mpi:v4.0.xopen-mpi/ompi:v4.0.xfrom

ggouaillardet:topic/v4.0.x/btl_vaderggouaillardet/ompi:topic/v4.0.x/btl_vaderCopy head branch name to clipboard