wolfssl: update to 5.1.1-stable

wolfssl: update to 5.1.1-stable

Bump from 4.8.1-stable to 5.1.1-stable

Detailed release notes: https://github.com/wolfSSL/wolfssl/releases

Upstreamed patches:
001-Maths-x86-asm-change-asm-snippets-to-get-compiling.patch -
 https://github.com/wolfSSL/wolfssl/commit/fa8f23284d4689c2a737204b337b58d966dcbd8c
002-Update-macro-guard-on-SHA256-transform-call.patch -
 https://github.com/wolfSSL/wolfssl/commit/f447e4c1fa4c932c0286fa0331966756e243db81

Refreshed patches:
100-disable-hardening-check.patch
200-ecc-rng.patch

CFLAG -DWOLFSSL_ALT_CERT_CHAINS replaced to --enable-altcertchains
configure option

The size of the ipk changed on aarch64 like this:
491341 libwolfssl4.8.1.31258522_4.8.1-stable-7_aarch64_cortex-a53.ipk
520322 libwolfssl5.1.1.31258522_5.1.1-stable-1_aarch64_cortex-a53.ipk

Tested-by: Alozxy <alozxy@users.noreply.github.com>
Acked-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
Signed-off-by: Sergey V. Lobanov <sergey@lobanov.in>