build(imx93): add build configs for imx93

Add build configs for i.MX93.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: I518b42151bbc440a3b3237bf98f5162a2cb462d0
diff --git a/group/tf-l1-build-plat/imx93-default:nil b/group/tf-l1-build-plat/imx93-default:nil
new file mode 100644
index 0000000..5515958
--- /dev/null
+++ b/group/tf-l1-build-plat/imx93-default:nil
@@ -0,0 +1,6 @@
+#
+# Copyright (c) 2023 Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+