MSC_Tests.ttcn: cosmetic: move TC_gsup_mt_multi_part_sms() back

The mentioned test case doesn't cause any problems anymore.

Change-Id: Ic8d456f4becade9010d4eb27159e6c2806b11810
diff --git a/msc/MSC_Tests.ttcn b/msc/MSC_Tests.ttcn
index 4b00e34..f551513 100644
--- a/msc/MSC_Tests.ttcn
+++ b/msc/MSC_Tests.ttcn
@@ -5593,6 +5593,7 @@
 	execute( TC_gsup_mt_sms_err() );
 	execute( TC_gsup_mt_sms_rp_mr() );
 	execute( TC_gsup_mo_mt_sms_rp_mr() );
+	execute( TC_gsup_mt_multi_part_sms() );
 
 	execute( TC_lu_and_mo_ussd_single_request() );
 	execute( TC_lu_and_mt_ussd_notification() );
@@ -5643,7 +5644,6 @@
 
 	/* Run this last: at the time of writing this test crashes the MSC */
 	execute( TC_lu_imsi_auth_tmsi_encr_3_1_log_msc_debug() );
-	execute( TC_gsup_mt_multi_part_sms() );
 	execute( TC_mo_cc_bssmap_clear() );
 	if (mp_enable_osmux_test) {
 		execute( TC_lu_and_mt_call_osmux() );