library: move IA/IAR Rest Octets to GSM_RestOctets.ttcn

Change-Id: Icd96fc461e37d1346950a4fa158e0421bd7330c5
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index 611ca23..1648a92 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -22,6 +22,7 @@
 import from Osmocom_Types all;
 import from GSM_Types all;
 import from GSM_RR_Types all;
+import from GSM_RestOctets all;
 
 import from Osmocom_VTY_Functions all;
 import from TELNETasp_PortType all;