opal: disable the __atomic built-in atomics by default on AArch64#8413

rajachan merged 1 commit intoopen-mpi:v4.1.xopen-mpi/ompi:v4.1.xfrom

hjelmn:v4.1.x_use_hand_written_atomics_for_aarch64_by_default_because_the_builtins_are_inferior_for_our_usagehjelmn/ompi:v4.1.x_use_hand_written_atomics_for_aarch64_by_default_because_the_builtins_are_inferior_for_our_usageCopy head branch name to clipboard