Turn _SSL_SRV_RESPECT_CLIENT_PREFERENCE config option to a runtime option

Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 3bdc1cf..ab11391 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -6189,6 +6189,7 @@
 
 #if defined(MBEDTLS_SSL_SRV_C)
     conf->cert_req_ca_list = MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED;
+    conf->respect_cli_pref = MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREF_DISABLED;
 #endif
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)