Ensure we don't call the OCSP callback if resuming a session

It makes no sense to call the OCSP status callback if we are resuming a
session because no certificates will be sent.
Reviewed-by: NViktor Dukhovni <viktor@openssl.org>

ssl/t1_lib.c

@@ -2855,7 +2855,7 @@ int ssl_check_serverhello_tlsext(SSL *s)
      * callback
      */
     if ((s->tlsext_status_type != -1) && !(s->tlsext_status_expected)
-        && s->ctx && s->ctx->tlsext_status_cb) {
+        && !(s->hit) && s->ctx && s->ctx->tlsext_status_cb) {
         int r;
         /*
          * Call callback with resp == NULL and resplen == -1 so callback