Add missing libziparchive dependency.

Bug: http://b/37560614
Test: builds even after removing system/core/include/ziparchive
Change-Id: Ib7ed45cafe83d24ed55aac28b4f41a073c371bc2
diff --git a/Android.mk b/Android.mk
index 5348e36..84f675b 100644
--- a/Android.mk
+++ b/Android.mk
@@ -59,7 +59,8 @@
     libvintf_recovery \
     libcrypto_utils \
     libcrypto \
-    libbase
+    libbase \
+    libziparchive \
 
 include $(BUILD_STATIC_LIBRARY)