linking of test app needs libUMP

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>

diff --git a/test/Makefile b/test/Makefile
index 700416e..92085cb 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -5,7 +5,7 @@
 all: test
 
 test: ../config.mk test.c
-	$(CC) $(CFLAGS) -o $@ test.c -lEGL -lGLESv2
+	$(CC) $(CFLAGS) -o $@ test.c -lEGL -lGLESv2 -lUMP
 
 clean:
 	rm -f test