Allow building for device. am: 4bf8ff97c2 am: ac5aa0607f am: 8cedc88b1a am: cf2d4f4e13

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/bitflags/+/1324495

Change-Id: I29b48ee11f9d15d33f7fa19f3961a4e391c302b7
diff --git a/Android.bp b/Android.bp
index c83e2fa..f1cb8a1 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: "libbitflags",
+    host_supported: true,
     crate_name: "bitflags",
     srcs: ["src/lib.rs"],
     edition: "2015",