Regenerate bindings with bindgen-rs 0.65.1

The bindings were generated using an old version of bindgen that
generated unittests relying on holding unaligned references. With rust
1.69.0, this became a hard-error, preventing us from upgrading the
toolchain for this crate.

This commit regenerates the binding with a new version of bindgen-rs
which no longer generates unittests as described above.

Signed-off-by: Patrick Roy <roypat@amazon.co.uk>

Author: roypat

src/loader_gen/mod.rs

@@ -10,8 +10,6 @@
 //! Bindgen autogenerated structs for boot parameters.
 
 #![cfg(any(target_arch = "x86", target_arch = "x86_64"))]
-// Keep this until https://github.com/rust-lang/rust-bindgen/issues/1651 is fixed.
-#![cfg_attr(test, allow(deref_nullptr, unaligned_references))]
 
 mod x86_64;
 pub use x86_64::*;