osmo-msc: Add talloc context introspection via VTY

This requires libosmocore with Change-Id
I43fc42880b22294d83c565ae600ac65e4f38b30d or later.

Change-Id: I575500bd911f9792ab5ca76eebb1d2682ee34fa3
diff --git a/src/osmo-msc/msc_main.c b/src/osmo-msc/msc_main.c
index b0b78be..da28083 100644
--- a/src/osmo-msc/msc_main.c
+++ b/src/osmo-msc/msc_main.c
@@ -51,6 +51,7 @@
 #include <osmocom/vty/telnet_interface.h>
 #include <osmocom/vty/ports.h>
 #include <osmocom/vty/logging.h>
+#include <osmocom/vty/misc.h>
 #include <osmocom/msc/vty.h>
 #include <osmocom/msc/mncc.h>
 #include <osmocom/msc/rrlp.h>
@@ -366,6 +367,7 @@
 
 	tall_msc_ctx = talloc_named_const(NULL, 1, "osmo_msc");
 	talloc_ctx_init(tall_msc_ctx);
+	msc_vty_info.tall_ctx = tall_msc_ctx;
 
 	osmo_init_logging(&log_info);
 	osmo_stats_init(tall_msc_ctx);
@@ -394,6 +396,7 @@
 
 	ctrl_vty_init(tall_msc_ctx);
 	logging_vty_add_cmds(&log_info);
+	osmo_talloc_vty_add_cmds();
 	msc_vty_init(msc_network);
 	bsc_vty_init_extra();