rust: Support MTE memtag_heap sanitizer

This CL adds support for the MTE memtag_heap sanitizer. This is
controlled via inclusion of an ELF note.

Bug: 170672854
Test: Heap MTE-enabled Rust test binary triggers MTE
Change-Id: I2619818785e86a94667d02b30d102c83456b7925
diff --git a/rust/Android.bp b/rust/Android.bp
index 0ee673d..cda2dbc 100644
--- a/rust/Android.bp
+++ b/rust/Android.bp
@@ -54,6 +54,7 @@
         "project_json_test.go",
         "protobuf_test.go",
         "rust_test.go",
+        "sanitize_test.go",
         "source_provider_test.go",
         "test_test.go",
         "vendor_snapshot_test.go",