Build acc tool with static rather than shared library.

OS X does not allow relative shared library path names in compiled apps,
so we have to create and link with a static library version of libacc.
diff --git a/libacc/tests/Android.mk b/libacc/tests/Android.mk
index b3af6f1..9188edb 100644
--- a/libacc/tests/Android.mk
+++ b/libacc/tests/Android.mk
@@ -8,8 +8,9 @@
 LOCAL_SRC_FILES:= \
 	main.cpp
 
-LOCAL_SHARED_LIBRARIES := \
-    libacc
+LOCAL_STATIC_LIBRARIES := \
+    libacc \
+    libcutils
 
 LOCAL_MODULE_TAGS := tests