Support building all variants. am: 2030eaa648

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/libloading/+/1356127

Change-Id: I0fff5001d10041e90226a8d3e6ff41a34f705f06
diff --git a/Android.bp b/Android.bp
index 1c74018..2c08732 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,6 +1,6 @@
 // This file is generated by cargo2android.py.
 
-rust_library_host_rlib {
+rust_library_host {
     name: "liblibloading",
     crate_name: "libloading",
     srcs: ["src/lib.rs"],