Enable Rust backend for Camera HAL

Change-Id: I70ee4b41d887a9e9b1345020df9d591abdba5c65
diff --git a/camera/common/aidl/Android.bp b/camera/common/aidl/Android.bp
index d21ae58..e1c9cc5 100644
--- a/camera/common/aidl/Android.bp
+++ b/camera/common/aidl/Android.bp
@@ -19,6 +19,9 @@
         java: {
             enabled: false,
         },
+        rust: {
+            enabled: true,
+        }
     },
     versions_with_info: [
         {