Update module with host_cross_supported

Bug: 353739440

Test: m rust
Change-Id: I1738e46449db8425cb5a02e77b13b6a11e900ebc
diff --git a/Android.bp b/Android.bp
index 5564d69..420eab1 100644
--- a/Android.bp
+++ b/Android.bp
@@ -6,6 +6,7 @@
 // TODO: Add license.
 rust_library_host {
     name: "libdarling_core",
+    host_cross_supported: false,
     crate_name: "darling_core",
     cargo_env_compat: true,
     cargo_pkg_version: "0.20.8",