Also disable arm64

Test: local checkbuild
Change-Id: I00206577989fd5c8f46983125b887a6c0beca501
diff --git a/Android.bp b/Android.bp
index 3c1d05b..7367d30 100644
--- a/Android.bp
+++ b/Android.bp
@@ -63,6 +63,9 @@
         android_arm: {
             enabled: false,
         },
+        android_arm64: {
+            enabled: false,
+        },
     },
 }