Add avf_build_flags_rust defaults to all rust_ modules

Bug: 298008251
Bug: 298012279
Bug: 298007909
Bug: 298008232
Test: builds
Test: presubmit
Change-Id: I5194d7043d5ac60b34162399557b3b657ead8969
diff --git a/rialto/Android.bp b/rialto/Android.bp
index 55423ea..3dfcca1 100644
--- a/rialto/Android.bp
+++ b/rialto/Android.bp
@@ -95,6 +95,7 @@
 rust_test {
     name: "rialto_test",
     crate_name: "rialto_test",
+    defaults: ["avf_build_flags_rust"],
     srcs: ["tests/test.rs"],
     prefer_rlib: true,
     edition: "2021",