wolfssl-sys: Bring back optimisations for X86_64 macOS catalyst app

[kp-thomas-yau]

Same as expressvpn/lightway-core#210

Forgot to add back optimisations for macOS catalyst x86_64, so add it back in to improve speed and efficiency.

[github-actions]

Code coverage summary for 697450c:

Filename                             Regions    Missed Regions     Cover   Functions  Missed Functions  Executed       Lines      Missed Lines     Cover    Branches   Missed Branches     Cover
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
wolfssl-sys/src/lib.rs                    25                 0   100.00%           2                 0   100.00%          13                 0   100.00%           0                 0         -
wolfssl/src/aes256.rs                    166                 8    95.18%          11                 0   100.00%         124                 4    96.77%           0                 0         -
wolfssl/src/chacha20_poly1305.rs          75                 2    97.33%           5                 0   100.00%          66                 2    96.97%           0                 0         -
wolfssl/src/context.rs                   401               173    56.86%          41                14    65.85%         286               110    61.54%           0                 0         -
wolfssl/src/error.rs                      45                13    71.11%           5                 1    80.00%          44                11    75.00%           0                 0         -
wolfssl/src/lib.rs                        81                15    81.48%          11                 1    90.91%          72                13    81.94%           0                 0         -
wolfssl/src/rng.rs                        72                10    86.11%           6                 0   100.00%          42                 3    92.86%           0                 0         -
wolfssl/src/ssl.rs                      1240               375    69.76%          77                25    67.53%         803               249    68.99%           0                 0         -
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
TOTAL                                   2105               596    71.69%         158                41    74.05%        1450               392    72.97%           0                 0         -

✅ Region coverage 71% passes
✅ Line coverage 72% passes