regen_makefile.sh: files/flags in separate lines

Make all regen_makefile.sh more readable and diff friendly by moving
each entry in FILES and CPPFLAGS_TTCN3 into separate lines. Order
entries alphabetically.

Related: OS#5252
Change-Id: I6b6866eb9f6ec6232e4ae434517457a4c8c1c050
diff --git a/mme/regen_makefile.sh b/mme/regen_makefile.sh
index cb04777..8106664 100755
--- a/mme/regen_makefile.sh
+++ b/mme/regen_makefile.sh
@@ -1,8 +1,28 @@
 #!/bin/sh
 
-FILES="*.ttcn *.asn *.c IPL4asp_PT.cc  IPL4asp_discovery.cc  Native_FunctionDefs.cc SGsAP_CodecPort_CtrlFunctDef.cc  S1AP_CodecPort_CtrlFunctDef.cc  TCCConversion.cc  TCCEncoding.cc TCCInterface.cc  TELNETasp_PT.cc S1AP_EncDec.cc LTE_CryptoFunctionDefs.cc GTPU_EncDec.cc GTPC_EncDec.cc DIAMETER_EncDec.cc DIAMETER_CodecPort_CtrlFunctDef.cc "
+FILES="
+	*.asn
+	*.c
+	*.ttcn
+	DIAMETER_CodecPort_CtrlFunctDef.cc
+	DIAMETER_EncDec.cc
+	GTPC_EncDec.cc
+	GTPU_EncDec.cc
+	IPL4asp_PT.cc
+	IPL4asp_discovery.cc
+	LTE_CryptoFunctionDefs.cc
+	Native_FunctionDefs.cc
+	S1AP_CodecPort_CtrlFunctDef.cc
+	S1AP_EncDec.cc
+	SGsAP_CodecPort_CtrlFunctDef.cc
+	TCCConversion.cc
+	TCCEncoding.cc
+	TCCInterface.cc
+	TELNETasp_PT.cc
+"
 
-export CPPFLAGS_TTCN3=""
+export CPPFLAGS_TTCN3="
+"
 
 ../regen-makefile.sh MME_Tests.ttcn $FILES