Make ciborium-ll available to product and vendor

Bug: 270690570

Test: mma in external/rust/crates
Change-Id: Ib48fbe6d66bc88207acbb5d27b1fdd84d4f19094
diff --git a/Android.bp b/Android.bp
index 8dbce63..30b1224 100644
--- a/Android.bp
+++ b/Android.bp
@@ -54,5 +54,6 @@
         "//apex_available:platform",
         "//apex_available:anyapex",
     ],
+    product_available: true,
     vendor_available: true,
 }