bsc: add TC_ciph_mode_a5_4

Establish a Signalling channel with A5/4 encryption.

Related: SYS#5324
Change-Id: I2428c21663dfa7d67e769da0127f74e8c01dfb97
diff --git a/bsc/expected-results.xml b/bsc/expected-results.xml
index f91de19..ab1a9e4 100644
--- a/bsc/expected-results.xml
+++ b/bsc/expected-results.xml
@@ -51,6 +51,7 @@
   <testcase classname='BSC_Tests' name='TC_ciph_mode_a5_0' time='MASKED'/>
   <testcase classname='BSC_Tests' name='TC_ciph_mode_a5_1' time='MASKED'/>
   <testcase classname='BSC_Tests' name='TC_ciph_mode_a5_3' time='MASKED'/>
+  <testcase classname='BSC_Tests' name='TC_ciph_mode_a5_4' time='MASKED'/>
   <testcase classname='BSC_Tests' name='TC_assignment_codec_fr' time='MASKED'/>
   <testcase classname='BSC_Tests' name='TC_assignment_codec_hr' time='MASKED'/>
   <testcase classname='BSC_Tests' name='TC_assignment_codec_efr' time='MASKED'/>