btl/uct: fix fetching atomics support for osc/rdma#12818

bosilca merged 1 commit intoopen-mpi:mainopen-mpi/ompi:mainfrom

hjelmn:btl_uct_make_it_work_better_given_we_no_longer_require_32bit_atomics_for_osc_rdmahjelmn/ompi:btl_uct_make_it_work_better_given_we_no_longer_require_32bit_atomics_for_osc_rdmaCopy head branch name to clipboard