[PATCH 4/4] drivers: base: test: add proper SPDX identifier to Makefile

[Greg Kroah-Hartman]

The Makefile in the drivers/base/test/ directory did not have a SPDX
identifier on it, so fix that up.

Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx
---
 drivers/base/test/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/base/test/Makefile b/drivers/base/test/Makefile
index 90477c5fd9f9..0f1f7277a013 100644
--- a/drivers/base/test/Makefile
+++ b/drivers/base/test/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_TEST_ASYNC_DRIVER_PROBE)	+= test_async_driver_probe.o
-- 
2.21.0