Update Android.bp by running cargo_embargo

Test: ran cargo_embargo
Change-Id: I362b7b19d3fe5ee30c72abbbb41d160edb7acb6a

Android.bp

diff --git a/Android.bp b/Android.bp
index 031ff37..a0aaa7b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -26,7 +26,7 @@
     crate_name: "libloading",
     cargo_env_compat: true,
     cargo_pkg_version: "0.8.3",
-    srcs: ["src/lib.rs"],
+    crate_root: "src/lib.rs",
     edition: "2015",
     rustlibs: ["libcfg_if"],
     apex_available: [