pgw: Add support for PCRF emulation (CCR/CCA)

If mp_pcrf_local_ip is set to a non-empty string, the PGW testsuite
now emulates a PCRF and expects the PGW to perform the related
transactions - so far Credit-Control-Request INITIAL_REQUEST
at session creation, and TERMINATION_REQUST at session deletion.

Change-Id: I5f0c7a66d38e5c8b5f36b45717d49648a14ed7b2
diff --git a/pgw/regen_makefile.sh b/pgw/regen_makefile.sh
index f53150c..adb5820 100755
--- a/pgw/regen_makefile.sh
+++ b/pgw/regen_makefile.sh
@@ -2,5 +2,6 @@
 
 FILES="*.ttcn IPL4asp_PT.cc  IPL4asp_discovery.cc  TCCConversion.cc  TCCInterface.cc GTPC_EncDec.cc GTPU_EncDec.cc GTP_CodecPort_CtrlFunctDef.cc GTPv2_CodecPort_CtrlFunctDef.cc ICMPv6_EncDec.cc IP_EncDec.cc Native_FunctionDefs.cc UDP_EncDec.cc ICMP_EncDec.cc "
 FILES+="UECUPS_CodecPort_CtrlFunctDef.cc "
+FILES+="DIAMETER_EncDec.cc DIAMETER_CodecPort_CtrlFunctDef.cc "
 
 ../regen-makefile.sh PGW_Tests.ttcn $FILES