MBEDTLS_SSL_PROTO_TLS1_2 macro

\def MBEDTLS_SSL_RECORD_SIZE_LIMIT Enable support for RFC 8449 record_size_limit extension in SSL (TLS 1.3 only). Requires: MBEDTLS_SSL_PROTO_TLS1_3 Uncomment this macro to enable support for the record_size_limit extension \def MBEDTLS_SSL_PROTO_TLS1_2 Enable support for TLS 1.2 (and DTLS 1.2 if DTLS is enabled). Requires: Without MBEDTLS_USE_PSA_CRYPTO: MBEDTLS_MD_C and (MBEDTLS_SHA256_C or MBEDTLS_SHA384_C or SHA-256 or SHA-512 provided by a PSA driver) With MBEDTLS_USE_PSA_CRYPTO: PSA_WANT_ALG_SHA_256 or PSA_WANT_ALG_SHA_384 \warning If building with MBEDTLS_USE_PSA_CRYPTO, or if the hash(es) used are only provided by PSA drivers, you must call psa_crypto_init() before doing any TLS operations. Comment this macro to disable support for TLS 1.2 / DTLS 1.2