Fix mips64 minadbd_test build.

Looks like the mips64 linker isn't as good as the others at GCing
unused stuff, which means it needs libcutils.

Change-Id: I5f768e44514350fb81e5360351db3e9cc4201702
(cherry picked from commit dbb20c48633e63c7c244e84f3fea76e083e225d7)
diff --git a/minadbd/Android.mk b/minadbd/Android.mk
index 8398cef..a7a3e08 100644
--- a/minadbd/Android.mk
+++ b/minadbd/Android.mk
@@ -32,6 +32,6 @@
 LOCAL_CFLAGS := $(minadbd_cflags)
 LOCAL_C_INCLUDES := $(LOCAL_PATH) system/core/adb
 LOCAL_STATIC_LIBRARIES := libminadbd
-LOCAL_SHARED_LIBRARIES := liblog libbase
+LOCAL_SHARED_LIBRARIES := liblog libbase libcutils
 
 include $(BUILD_NATIVE_TEST)