Add ext libs to AOSP - they are part of the system

bug:27698377

Change-Id: Ic426e08e450598c53e4dbf9c734d808b19fae705
diff --git a/target/product/core_minimal.mk b/target/product/core_minimal.mk
index 13f23ad..7a96a1b 100644
--- a/target/product/core_minimal.mk
+++ b/target/product/core_minimal.mk
@@ -24,6 +24,8 @@
 
 PRODUCT_PACKAGES += \
     BackupRestoreConfirmation \
+    ExtShared \
+    ExtServices \
     DownloadProvider \
     HTMLViewer \
     MediaProvider \