Merge pull request #8685 from awlauria/add_atomics_blurb_to_config_summary

Add chosen atomics to the configury output summary.

Author: awlauria

config/opal_config_asm.m4

@@ -1297,6 +1297,8 @@ int main(int argc, char* argv[])
         [Whether to use builtin atomics])
     AC_SUBST([OPAL_ASSEMBLY_BUILTIN])
 
+    OPAL_SUMMARY_ADD([[Atomics]],[[OMPI]],[],[$opal_cv_asm_builtin])
+
     OPAL_ASM_FIND_FILE
 
     unset result asm_format