[openssl/openssl] a3e131: Rearrange terms in gf_mul to prevent segfault

[Angel Baez]

  Branch: refs/heads/openssl-3.2
  Home:   https://github.com/openssl/openssl
  Commit: a3e131b1ffcd4ea097878c8b0c1eec91173fdd0c
      https://github.com/openssl/openssl/commit/a3e131b1ffcd4ea097878c8b0c1eec91173fdd0c
  Author: Angel Baez <51308340+abaez004 at users.noreply.github.com>
  Date:   2024-02-09 (Fri, 09 Feb 2024)

  Changed paths:
    M crypto/ec/curve448/arch_64/f_impl64.c

  Log Message:
  -----------
  Rearrange terms in gf_mul to prevent segfault

CLA: trivial

Reviewed-by: Tom Cosgrove <tom.cosgrove at arm.com>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/23512)

(cherry picked from commit 76cecff5e9bedb2bafc60062283f99722697082a)