CVPN-1681 Fix failed Kyber/ML-KEM handshake with non-AVX2 CPU

[kp-thomas-yau]

The patch is from:
wolfSSL/wolfssl#8306

This patch fixes an issue where older CPUs, with no AVX2 support, fail to handshake Kyber/ML-KEM.

[github-actions]

Code coverage summary for 76c182e:

Filename                             Regions    Missed Regions     Cover   Functions  Missed Functions  Executed       Lines      Missed Lines     Cover    Branches   Missed Branches     Cover
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
wolfssl-sys/src/lib.rs                     6                 0   100.00%           3                 0   100.00%          24                 0   100.00%           0                 0         -
wolfssl/src/chacha20_poly1305.rs          14                 2    85.71%           5                 0   100.00%          95                 2    97.89%           0                 0         -
wolfssl/src/context.rs                   172                83    51.74%          45                14    68.89%         344               131    61.92%           0                 0         -
wolfssl/src/error.rs                      19                 7    63.16%           5                 1    80.00%          51                 9    82.35%           0                 0         -
wolfssl/src/lib.rs                        68                14    79.41%          14                 2    85.71%          84                15    82.14%           0                 0         -
wolfssl/src/rng.rs                        19                 5    73.68%           4                 0   100.00%          47                 3    93.62%           0                 0         -
wolfssl/src/ssl.rs                       471               202    57.11%          80                24    70.00%        1065               281    73.62%           0                 0         -
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
TOTAL                                    769               313    59.30%         156                41    73.72%        1710               441    74.21%           0                 0         -

✅ Region coverage 59% passes
✅ Line coverage 74% passes