RANAP ASN.1 Rewrite to avoid information object classes

If we avoid using Information Object Classes in the IE definitions
(which are only used for Extension Containers), then we can compile the
ASN.1 source using Lev Walkin's asn1c.

asn1/ranap/RANAP-PDU.asn

@@ -0,0 +1,58 @@
+RANAP-PDU {
+itu-t (0) identified-organization (4) etsi (0) mobileDomain (0) 
+umts-Access (20) modules (3) ranap(0) version1 (1) ranap-PDU (255) }
+
+DEFINITIONS AUTOMATIC TAGS ::=
+
+BEGIN
+
+IMPORTS
+    Criticality,
+    ProcedureCode,
+    ProtocolIE-ID
+
+FROM RANAP-CommonDataTypes
+
+    maxProtocolIEs
+
+FROM RANAP-Constants;
+
+RANAP-PDU ::= CHOICE {
+    initiatingMessage       InitiatingMessage,
+    successfulOutcome       SuccessfulOutcome,
+    unsuccessfulOutcome     UnsuccessfulOutcome,
+    outcome     	    Outcome,
+    ...
+}
+
+InitiatingMessage ::= SEQUENCE {
+    procedureCode   ProcedureCode,
+    criticality     Criticality,
+    value           ANY
+}
+
+SuccessfulOutcome ::= SEQUENCE {
+    procedureCode   ProcedureCode,
+    criticality     Criticality,
+    value           ANY
+}
+
+UnsuccessfulOutcome ::= SEQUENCE {
+    procedureCode   ProcedureCode,
+    criticality     Criticality,
+    value           ANY
+}
+
+Outcome ::= SEQUENCE {
+    procedureCode   ProcedureCode,
+    criticality     Criticality,
+    value           ANY
+}
+
+IE ::= SEQUENCE {
+    id ProtocolIE-ID,
+    criticality Criticality,
+    value ANY
+}
+
+END

asn1/ranap/asn1c/Makefile

@@ -0,0 +1,6 @@
+MOD=RANAP
+
+ASNS=../$(MOD)-CommonDataTypes.asn ../$(MOD)-Constants.asn ../$(MOD)-IEs.asn ../$(MOD)-PDU.asn
+
+all: $(ASNS)
+	asn1c -gen-PER -fnative-types -fskeletons-copy $^