opal_free_list: use lifo atomic functions in opal_free_list_wait_mt#4969

bwbarrett merged 1 commit intoopen-mpi:v3.1.xopen-mpi/ompi:v3.1.xfrom

hjelmn:v3.1.x_opal_free_listhjelmn/ompi:v3.1.x_opal_free_listCopy head branch name to clipboard