mgw: Introduce test TC_auep_null

Related: SYS#6481
Change-Id: I9395cd526cf626974fb0e2ed93ff5d95a433d8c0
diff --git a/mgw/expected-results.xml b/mgw/expected-results.xml
index 577b6e3..a4ce388 100644
--- a/mgw/expected-results.xml
+++ b/mgw/expected-results.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0"?>
 <testsuite name='Titan' tests='71' failures='8' errors='0' skipped='0' inconc='0' time='MASKED'>
   <testcase classname='MGCP_Test' name='TC_selftest' time='MASKED'/>
+  <testcase classname='MGCP_Test' name='TC_auep_null' time='MASKED'/>
   <testcase classname='MGCP_Test' name='TC_crcx' time='MASKED'/>
   <testcase classname='MGCP_Test' name='TC_crcx_no_lco' time='MASKED'/>
   <testcase classname='MGCP_Test' name='TC_crcx_noprefix' time='MASKED'/>