msc: Add includes to silence a compiler warning.

openbsc/src/gsm_04_08.c

@@ -54,6 +54,7 @@
 #include <openbsc/ussd.h>
 #include <openbsc/silent_call.h>
 #include <openbsc/bsc_api.h>
+#include <openbsc/osmo_msc.h>
 
 void *tall_locop_ctx;
 void *tall_authciphop_ctx;

openbsc/src/silent_call.c

@@ -33,6 +33,7 @@
 #include <openbsc/gsm_subscriber.h>
 #include <openbsc/abis_rsl.h>
 #include <openbsc/chan_alloc.h>
+#include <openbsc/osmo_msc.h>
 
 /* paging of the requested subscriber has completed */
 static int paging_cb_silent(unsigned int hooknum, unsigned int event,

openbsc/src/transaction.c

@@ -28,6 +28,7 @@
 #include <openbsc/gsm_04_08.h>
 #include <openbsc/mncc.h>
 #include <openbsc/paging.h>
+#include <openbsc/osmo_msc.h>
 
 void *tall_trans_ctx;
 

openbsc/src/ussd.c

@@ -33,6 +33,7 @@
 #include <openbsc/gsm_04_80.h>
 #include <openbsc/gsm_subscriber.h>
 #include <openbsc/debug.h>
+#include <openbsc/osmo_msc.h>
 
 /* Declarations of USSD strings to be recognised */
 const char USSD_TEXT_OWN_NUMBER[] = "*#100#";