Update Makefile of test case

test/test-air-2cyclics/Makefile

 KAZOO=../../kazoo
 
 all: test-parse
-	cp input_data/helloworld1.c output/helloworld1/C/src
-	cp input_data/helloworld2.c output/helloworld2/C/src
-	make -C output air
+	cp input_data/helloworld1.c work/helloworld1/C/src
+	cp input_data/helloworld2.c work/helloworld2/C/src
+	make -C work air
 
 test-parse: clean
 	$(KAZOO) --gw -p \
-	         -o output \
+	         -o work \
 	         --glue \
 		 --no-stdlib \
 	         --debug \
 		 ../common/ocarina_components.aadl
 
+skeletons:
+	$(MAKE) -C work skeletons
 
 gdb: clean
 	gdb --args $(KAZOO) --gw -p \