Enable rust backend for android.hardware.bluetooth(.audio)

Bug: 312265159
Test: TreeHugger
Change-Id: Id1098a8deb6e83f3b33dec2a982f68450cb0f510
diff --git a/bluetooth/aidl/Android.bp b/bluetooth/aidl/Android.bp
index c6a592f..721be73 100644
--- a/bluetooth/aidl/Android.bp
+++ b/bluetooth/aidl/Android.bp
@@ -23,6 +23,9 @@
             // translate code.
             enabled: true,
         },
+        rust: {
+            enabled: true,
+        },
         java: {
             sdk_version: "module_current",
         },