Sync test groups with internal CI

Signed-off-by: Zelalem <zelalem.aweke@arm.com>
Change-Id: I8bf270aaee4607c97b2706dd87328e8566be0261
diff --git a/group/tf-l1-check-docs/build-docs:nil b/group/tf-l1-check-docs/build-docs:nil
new file mode 100644
index 0000000..904c1fb
--- /dev/null
+++ b/group/tf-l1-check-docs/build-docs:nil
@@ -0,0 +1,11 @@
+#!/bin/bash
+#
+# Copyright (c) 2020, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+pre_tf_build() {
+	targets="doc" set_tf_build_targets
+}
+