rust: Upgrade 1.83.0->1.84.1

rust: Upgrade 1.83.0->1.84.1

Rust stable version updated to 1.84.1.
https://blog.rust-lang.org/2025/01/30/Rust-1.84.1.html

Renamed and modified the below patch to adapt the new version.
rv32-cargo-rustix-0.38.37-fix.patch->rv32-cargo-rustix-0.38.38-fix.patch

Modified the below patches to adapt the new version.
repro-issue-fix-with-cc-crate-hashmap.patch
revert-link-std-statically-in-rustc_driver-feature.patch

Dropped the below patches :
0001-NFC-fix-build-failure-100993.patch
https://github.com/llvm/llvm-project/commit/6ee49080e4bb43efe7ede10bed15935853bbd434

revert-Zdual-proc-macros-additional-check.patch
Issue is fixed in rust-master and the fix is backported in the
subsequent patch of the series.

Signed-off-by: Deepesh Varatharajan <Deepesh.Varatharajan@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>