scripts/Makefile* Add SPDX-License-Identifier tag
A general best practice for SPDX is that Makefiles should have an
identifier, add these as everything else is currently covered.
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index de818ae..06e5c20 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -1,6 +1,9 @@
# ==========================================================================
# Building
# ==========================================================================
+#
+# SPDX-License-Identifier: GPL-2.0
+#
# Modified for U-Boot
prefix := tpl