Declare private_platform_apis to build on P
diff --git a/DevInputJack/Android.mk b/DevInputJack/Android.mk
index fd5648c..4da5ea7 100644
--- a/DevInputJack/Android.mk
+++ b/DevInputJack/Android.mk
@@ -4,4 +4,5 @@
 LOCAL_PACKAGE_NAME := treble-overlay-devinputjack
 LOCAL_MODULE_PATH := $(TARGET_OUT)/overlay
 LOCAL_IS_RUNTIME_RESOURCE_OVERLAY := true
+LOCAL_PRIVATE_PLATFORM_APIS := true
 include $(BUILD_PACKAGE)