Make async-task available to product and vendor

Bug: 270690570

Test: mma in external/rust/crates
Change-Id: I47b7336c5a7638c13b9516e5d20581e8d1fdfafa
diff --git a/Android.bp b/Android.bp
index a46517c..8841f13 100644
--- a/Android.bp
+++ b/Android.bp
@@ -53,4 +53,6 @@
         "//apex_available:platform",
         "com.android.virt",
     ],
+    product_available: true,
+    vendor_available: true,
 }