Move f_strstr_count() Osmocom_VTY_Functions.ttcn -> Misc_Helpers.ttcn

This is quite a generic string handling function which fits better
in a generic utility file like Misc_Helpers.ttcn.

Change-Id: I105844d2bcab6c24624be1224c1ba78b69d4b44c
diff --git a/simtrace/regen_makefile.sh b/simtrace/regen_makefile.sh
index baecf7d..04c8397 100755
--- a/simtrace/regen_makefile.sh
+++ b/simtrace/regen_makefile.sh
@@ -5,6 +5,7 @@
 FILES="
 	*.ttcn
 	Native_FunctionDefs.cc
+	TCCConversion.cc
 	USB_PT.cc
 "