Update Android.bp by running cargo_embargo am: 2415580c0a

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/mls-rs/+/3094650

Change-Id: I6144624c2a940a75d4a4aa92f000cbee78d496b0
Signed-off-by: Automerger Merge Worker <[email protected]>
diff --git a/Android.bp b/Android.bp
index 34999be..d0a73cc 100644
--- a/Android.bp
+++ b/Android.bp
@@ -24,7 +24,7 @@
     crate_name: "mls_rs",
     cargo_env_compat: true,
     cargo_pkg_version: "0.39.1",
-    srcs: ["src/lib.rs"],
+    crate_root: "src/lib.rs",
     edition: "2021",
     features: [
         "by_ref_proposal",