fix setting the CFLAGS for building codec libs so that they are built with

astmm support and astmm doesn't get really upset and complain that it is being
asked to free memory that was never allocated


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@38271 65c4cc65-6c06-0410-ace0-fbb531ad65f3

codecs/Makefile

@@ -42,14 +42,14 @@ clean::
 
 gsm/lib/libgsm.a:
 	@mkdir -p gsm/lib
-	@CFLAGS="$(ASTCFLAGS) -I." $(MAKE) -C gsm lib/libgsm.a
+	@CFLAGS="$(CFLAGS) -I." $(MAKE) -C gsm lib/libgsm.a
 
 $(LIBLPC10):
-	@CFLAGS="$(ASTCFLAGS)" $(MAKE) -C lpc10 all
+	@$(MAKE) -C lpc10 all
 
 codec_lpc10.so: $(LIBLPC10)
 
 $(LIBILBC):
-	@CFLAGS="$(ASTCFLAGS)" $(MAKE) -C ilbc all
+	@$(MAKE) -C ilbc all
 
 codec_ilbc.so: $(LIBILBC)