rust: update 1.65.0 -> 1.66.0

Drop backported patch ENOTSUP constant for riscv32/musl.

Release notes:
  https://blog.rust-lang.org/2022/12/15/Rust-1.66.0.html



License-Update: Upstream has added Unicode Terms of Use license
  (Unicode-TOU).
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>