Allow unsafe operations in unsafe functions in generated code.

This will soon be denied by default, but we trust that cxx does is
correct.

Bug: 290018030
Test: m rust
Change-Id: Ie090e2013dd63d1edd366e4db29672ed72e39be1
diff --git a/src/rust/hal/hidl_hal.rs b/src/rust/hal/hidl_hal.rs
index 91e67ef..402cf5c 100644
--- a/src/rust/hal/hidl_hal.rs
+++ b/src/rust/hal/hidl_hal.rs
@@ -51,6 +51,7 @@
 #[cxx::bridge(namespace = nfc::hal)]
 // TODO Either use or remove these functions, this shouldn't be the long term state
 #[allow(dead_code)]
+#[allow(unsafe_op_in_unsafe_fn)]
 mod ffi {
 
     #[repr(u32)]