stats: cosmetic: print 'stats interval' before the reporters

It's better to have the common parameters printed first.

Change-Id: Ifb401d4d363fb70e89960ca739baba5ee55eefe8
Related: SYS#5713
diff --git a/src/vty/stats_vty.c b/src/vty/stats_vty.c
index a4fc6ea..48e4f1c 100644
--- a/src/vty/stats_vty.c
+++ b/src/vty/stats_vty.c
@@ -680,12 +680,12 @@
 {
 	struct osmo_stats_reporter *srep;
 
+	vty_out(vty, "stats interval %d%s", osmo_stats_config->interval, VTY_NEWLINE);
+
 	/* Loop through all reporters */
 	llist_for_each_entry(srep, &osmo_stats_reporter_list, list)
 		config_write_stats_reporter(vty, srep);
 
-	vty_out(vty, "stats interval %d%s", osmo_stats_config->interval, VTY_NEWLINE);
-
 	return 1;
 }