spi: Add GPL-2.0+ SPDX-License-Identifier for missing files
Added GPL-2.0+ SPDX-License-Identifier for missed spi
source files.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
diff --git a/drivers/spi/xilinx_spi.h b/drivers/spi/xilinx_spi.h
index 69d0b94..ce7d82c 100644
--- a/drivers/spi/xilinx_spi.h
+++ b/drivers/spi/xilinx_spi.h
@@ -9,7 +9,7 @@
* Copyright (c) 2010 Graeme Smecher <graeme.smecher@mail.mcgill.ca>
* Copyright (c) 2012 Stephan Linz <linz@li-pro.net>
*
- * Licensed under the GPL-2 or later.
+ * SPDX-License-Identifier: GPL-2.0+
*
* [0]: http://www.xilinx.com/support/documentation
*