Monitor: Make mon_set_cpu() public

Also rename it to monitor_set_cpu().

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
diff --git a/monitor.c b/monitor.c
index ea5ccd8..3f99ea0 100644
--- a/monitor.c
+++ b/monitor.c
@@ -514,7 +514,6 @@
     return 0;
 }
 
-static int mon_set_cpu(int cpu_index);
 static void handle_user_command(Monitor *mon, const char *cmdline);
 
 static int do_hmp_passthrough(Monitor *mon, const QDict *params,
@@ -532,7 +531,7 @@
     cur_mon = &hmp;
 
     if (qdict_haskey(params, "cpu-index")) {
-        ret = mon_set_cpu(qdict_get_int(params, "cpu-index"));
+        ret = monitor_set_cpu(qdict_get_int(params, "cpu-index"));
         if (ret < 0) {
             cur_mon = old_mon;
             qerror_report(QERR_INVALID_PARAMETER_VALUE, "cpu-index", "a CPU number");
@@ -772,8 +771,8 @@
     return cmd_list;
 }
 
-/* get the current CPU defined by the user */
-static int mon_set_cpu(int cpu_index)
+/* set the current CPU defined by the user */
+int monitor_set_cpu(int cpu_index)
 {
     CPUState *env;
 
@@ -789,7 +788,7 @@
 static CPUState *mon_get_cpu(void)
 {
     if (!cur_mon->mon_cpu) {
-        mon_set_cpu(0);
+        monitor_set_cpu(0);
     }
     cpu_synchronize_state(cur_mon->mon_cpu);
     return cur_mon->mon_cpu;
@@ -901,7 +900,7 @@
 static int do_cpu_set(Monitor *mon, const QDict *qdict, QObject **ret_data)
 {
     int index = qdict_get_int(qdict, "index");
-    if (mon_set_cpu(index) < 0) {
+    if (monitor_set_cpu(index) < 0) {
         qerror_report(QERR_INVALID_PARAMETER_VALUE, "index",
                       "a CPU number");
         return -1;