Support building all variants.

Bug: 143217452
Test: cd external/rust; mma; atest in all TEST_MAPPING subdirs
Change-Id: Ie2f5bd27886a98ce3fc0b9793cfa993b24c67d17
diff --git a/Android.bp b/Android.bp
index 4b09a12..0c2ca4d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,11 +1,11 @@
 // This file is generated by cargo2android.py.
 
-rust_library_host_rlib {
+rust_library_host {
     name: "libthread_local",
     crate_name: "thread_local",
     srcs: ["src/lib.rs"],
     edition: "2015",
-    rlibs: [
+    rustlibs: [
         "liblazy_static",
     ],
 }