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

Change-Id: Icd96fc461e37d1346950a4fa158e0421bd7330c5
diff --git a/pcu/GPRS_Components.ttcn b/pcu/GPRS_Components.ttcn
index eb29787..f9a39a6 100644
--- a/pcu/GPRS_Components.ttcn
+++ b/pcu/GPRS_Components.ttcn
@@ -16,6 +16,7 @@
 import from Osmocom_Types all;
 import from GSM_Types all;
 import from GSM_RR_Types all;
+import from GSM_RestOctets all;
 
 import from RLCMAC_CSN1_Types all;
 import from RLCMAC_CSN1_Templates all;