Allow using private framework API.

Change-Id: I2ae8882a3ca9d99ecba6e1b4f8d6ed426036818d
diff --git a/Android.mk b/Android.mk
index eb6798c..dd37847 100644
--- a/Android.mk
+++ b/Android.mk
@@ -170,12 +170,12 @@
 
 LOCAL_PROGUARD_ENABLED += optimization
 
-LOCAL_SDK_VERSION := system_current
 LOCAL_MODULE_TAGS := optional
 LOCAL_PACKAGE_NAME := Dialer
 LOCAL_CERTIFICATE := shared
 LOCAL_PRIVILEGED_MODULE := true
 LOCAL_PRODUCT_MODULE := true
+LOCAL_PRIVATE_PLATFORM_APIS := true
 LOCAL_USE_AAPT2 := true
 LOCAL_REQUIRED_MODULES := privapp_whitelist_com.android.dialer