Support building all variants.

Bug: 143217452
Test: cd external/rust; mma; atest in all TEST_MAPPING subdirs
Change-Id: I0a97f8cc4531aef7523d3e59f68630adc48fdda3
diff --git a/Android.bp b/Android.bp
index 0c232f6..a3d60a8 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,8 +1,9 @@
 // This file is generated by cargo2android.py.
 
-rust_library_host_rlib {
+rust_library {
     name: "libglob",
     crate_name: "glob",
     srcs: ["src/lib.rs"],
     edition: "2015",
+    host_supported: true,
 }