Make grpcio available to vendor

This change updates the Rust bindings to use the same visibility
settings as in libgrpc++.

Bug: 270690570
Bug: 302578892
Test: manual tests with sample RPC client and server

Change-Id: I6773482308266f0a9b587edd37a66d2185e646b3

1 files changed, 2 insertions, 0 deletions

diff --git a/Android.bp b/Android.bp
index 3f136b9..66a47a1 100644
--- a/Android.bp
+++ b/Android.bp
@@ -42,5 +42,7 @@ rust_library {
     apex_available: [
         "//apex_available:platform",
     ],
+    product_available: false,
+    vendor_available: true,
     min_sdk_version: "29",
 }