Fix CI issues

Default flow assumes failure causes multiple issues with
compatibility tests when the return value is initialised
with error value in ssl_in_server_key_exchange_parse.
The function would need a significant change in structure for this.
diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index 38ff1ab..8d14374 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -4632,8 +4632,8 @@
 
             MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate verify" ) );
             goto exit;
-        } 
-        
+        }
+
     }
 
     MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret );