MSC_Tests: Add testcase to simulate VLR/HLR failure (SGsAP)

Currently we do not simulate a situation where the HLR is unreachable to
the MSC. Lets add a test wehere the HLR is disconnected and an LU via
SGsAP is tried. The SGs interface should then carry out a reset
procedure.

Change-Id: I830d0b936cbe9d73d1e0b1f4792c2be3d0b08cb9
Related: OS#3859
diff --git a/msc/expected-results.xml b/msc/expected-results.xml
index 2c0083c..78b0099 100644
--- a/msc/expected-results.xml
+++ b/msc/expected-results.xml
@@ -90,6 +90,7 @@
   <testcase classname='MSC_Tests' name='TC_sgsap_unsol_ud' time='MASKED'/>
   <testcase classname='MSC_Tests' name='TC_bssap_lu_sgsap_lu_and_mt_call' time='MASKED'/>
   <testcase classname='MSC_Tests' name='TC_sgsap_lu_and_mt_call' time='MASKED'/>
+  <testcase classname='MSC_Tests' name='TC_sgsap_vlr_failure' time='MASKED'/>
   <testcase classname='MSC_Tests' name='TC_lu_imsi_auth_tmsi_encr_3_1_log_msc_debug' time='MASKED'/>
   <testcase classname='MSC_Tests' name='TC_gsup_mt_multi_part_sms' time='MASKED'>
     <failure type='fail-verdict'>Tguard timeout