Support cpp backend for libfmq am: 4d606ccb65

Original change: https://android-review.googlesource.com/c/platform/system/libfmq/+/3364942

Change-Id: I38ccbc0be9c740531a520ae4942473ece3d1124f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

Android.bp

diff --git a/Android.bp b/Android.bp
index 8b3a6e1..447f977 100644
--- a/Android.bp
+++ b/Android.bp
@@ -189,7 +189,10 @@
     host_supported: true,
     vendor_available: true,
     product_available: true,
-    visibility: [":__subpackages__"],
+    visibility: [
+        ":__subpackages__",
+        "//system/software_defined_vehicle/core_services/sdv_comms:__subpackages__",
+    ],
     crate_name: "fmq",
     srcs: ["libfmq.rs"],
     edition: "2021",