modify bootstrap to log the CPUs allowed list when cpu-partitioning i…

…s not in use

- this may be helpful to understand the limitations that may (or may
  not) be being imposed by other components of the test infrastructure
  (ie. NUMA binding, K8S guaranteed pods, etc.)

engine/bootstrap

@@ -268,6 +268,9 @@ if [ "${cpu_partitioning}" == "1" ]; then
     taskset --cpu-list --pid ${HK_CPUS} $$
 else
     echo "Disabled"
+    echo
+    echo "Since cpu-partitioning is disabled, logging the allowed runnable CPUs here for informational purposes:"
+    grep Cpus_allowed_list /proc/self/status
 fi
 echo