Change Android.mk to allow use as static library

Change-Id: If1756aaf17e2621faf194caee13b695ef69a5103
diff --git a/common/json/Android.mk b/common/json/Android.mk
index 15d1cfe..18c4ec2 100644
--- a/common/json/Android.mk
+++ b/common/json/Android.mk
@@ -16,11 +16,7 @@
 
 include $(CLEAR_VARS)
 
-LOCAL_MODULE := json-prebuilt
 LOCAL_MODULE_TAGS := optional
-LOCAL_SRC_FILES := json-prebuilt.jar
-LOCAL_IS_HOST_MODULE := true
-LOCAL_MODULE_CLASS := JAVA_LIBRARIES
-LOCAL_MODULE_SUFFIX := $(COMMON_JAVA_PACKAGE_SUFFIX)
+LOCAL_PREBUILT_JAVA_LIBRARIES := json-prebuilt$(COMMON_JAVA_PACKAGE_SUFFIX)
 
-include $(BUILD_PREBUILT)
+include $(BUILD_HOST_PREBUILT)