FS-10384 [mod_lua] Fix Makefile target

When running "make swigclean" in mod_lua directory and trying to compile
mod_lua afterward, the build fails because the target mod_lua_wrap.cpp
doesn't exist. The target is wrongly called lua_wrap instead.

making all mod_lua
make[7]: Entering directory '/path/to/freeswitch-1.6.17/src/mod/languages/mod_lua'
  CXX mod_lua_la-mod_lua.lo
  CXX mod_lua_la-freeswitch_lua.lo
make[7]: *** No rule to make target 'mod_lua_wrap.cpp', needed by 'mod_lua_la-mod_lua_wrap.lo'. Stop.

Fix this by renaming lua_wrap to mod_lua_wrap.cpp.
Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>

src/mod/languages/mod_lua/Makefile.am

@@ -24,12 +24,12 @@ if SYSTEM_LUA
 mod_lua_la_LDFLAGS += $(LUA_LIBS)
 endif
 
-reswig: swigclean lua_wrap
+reswig: swigclean mod_lua_wrap.cpp
 
 swigclean: clean
 	rm -f mod_lua_wrap.*
 
-lua_wrap: mod_lua_extra.c
+mod_lua_wrap.cpp: mod_lua_extra.c
 	swig2.0 -lua -c++ -I../../../../src/include -oh mod_lua_wrap.h -o mod_lua_wrap.cpp freeswitch.i
 	echo "#include \"mod_lua_extra.c\"" >> mod_lua_wrap.cpp
 	patch -s -p0 -i hack.diff