Allow building for device. am: a0954fceb6

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/futures/+/1332155

Change-Id: Iebd6b37d86cad1bb3935101ca2fd713f20b92343
diff --git a/Android.bp b/Android.bp
index c988699..dd06860 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,7 +1,8 @@
-// This file is generated by cargo2android.py.
+// This file is generated by cargo2android.py --run --device.
 
-rust_library_host_rlib {
+rust_library_rlib {
     name: "libfutures",
+    host_supported: true,
     crate_name: "futures",
     srcs: ["src/lib.rs"],
     edition: "2018",