Update CertificateRequest skip condition

Signed-off-by: Xiaofei Bai <xiaofei.bai@arm.com>
diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index a103c9d..6d4cd52 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -1417,7 +1417,7 @@
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if( ! mbedtls_ssl_tls13_some_ephemeral_enabled( ssl ) )
+    if( mbedtls_ssl_tls13_some_psk_enabled( ssl ) )
     {
         MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= skip parse certificate request" ) );
         return( SSL_CERTIFICATE_REQUEST_SKIP );