[PATCH] watchdog: sb_wdog: add missing SPDX license identifier

[Mayur Kumar]

checkpatch.pl reports the following warning:

WARNING: Missing or malformed SPDX-License-Identifier tag in line 1

Per Documentation/process/license-rules.rst, add the appropriate SPDX
license identifier to the first line of the C source file using the
'//' style comment. Default to GPL-2.0-only.

Signed-off-by: Mayur Kumar <kmayur809@xxxxxxxxx>
---
 drivers/watchdog/sb_wdog.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c
index eaa68b54cf5..03db71a43d6 100644
--- a/drivers/watchdog/sb_wdog.c
+++ b/drivers/watchdog/sb_wdog.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Watchdog driver for SiByte SB1 SoCs
  *
-- 
2.34.1