tools/power turbostat: reduce debug output

A recent turbostat release increased topo.max_cpu_num
to make it convenient to handle sysfs bitmaps of 32-cpus.

But users, who regularly make use of "--debug", then saw a bunch of output
for cpus that were not present.

Remove that extra output by checking a cpu is online before dumping its info.
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: Prarit Bhargava <prarit@redhat.com>

tools/power/x86/turbostat/turbostat.c

@@ -4887,6 +4887,8 @@ void topology_probe()
 		return;
 
 	for (i = 0; i <= topo.max_cpu_num; ++i) {
+		if (cpu_is_not_present(i))
+			continue;
 		fprintf(outf,
 			"cpu %d pkg %d node %d lnode %d core %d thread %d\n",
 			i, cpus[i].physical_package_id,