Remove MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS

Signed-off-by: Hanno Becker <hanno.becker@arm.com>
diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index 8facacf..b667d01 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -3749,7 +3749,7 @@
                                       ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
         {
             MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS );
+            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
         }
 
         MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K  );
@@ -3782,7 +3782,7 @@
                                        ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
         {
             MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS );
+            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
         }
 
         MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,