loader: Regenerate bootparams.rs

Run rust-bindgen against the latest stable version of bootparams.h
(v5.2 tag - 0ecfebd2b52404ae0c54a878c872bb93363ada36)

Generated with:

bindgen bootparam.h -o bootparam.rs --with-derive-default
--with-derive-partialeq --no-doc-comments

Bindgen version: 0.51.0

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

Author: rbradford