BSC_Tests: Implement ecnryption related procedures

Let's verify the operation of the CIPHERING MODE COMMAND as issued
by MSC, performed by BSC and implemented by simulated BTS/MS.

Change-Id: Ibc06bd2177c63837a794a0ca1f54ebef17499e78
diff --git a/library/L3_Templates.ttcn b/library/L3_Templates.ttcn
index 4755989..f0f3d38 100644
--- a/library/L3_Templates.ttcn
+++ b/library/L3_Templates.ttcn
@@ -126,5 +126,20 @@
 	}
 }
 
+template (value) PDU_ML3_MS_NW ts_RRM_CiphModeCompl := {
+	discriminator := '0000'B, /* overwritten */
+	tiOrSkip := {
+		skipIndicator := '0000'B
+	},
+	msgs := {
+		rrm := {
+			cipheringModeComplete := {
+				messageType := '00110010'B,
+				mobileEquipmentIdentity := omit
+			}
+		}
+	}
+}
+
 
 }