Add smallvec/OWNERS am: 5986c40c21 am: ce62492438

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/smallvec/+/1429448

Change-Id: I8ae995346f3cd35287993b60d05bd30731cc7edf
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..46fc303
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+include platform/prebuilts/rust:/OWNERS