[PATCH] coccinelle: api/atomic_as_refcounter: add SPDX License Identifier

[Matthias Maennich]

Add the missing GPLv2 SPDX license identifier.

It appears this single file was missing from 7f904d7e1f3e ("treewide:
Replace GPLv2 boilerplate/reference with SPDX - rule 505"), which
addressed all other files in scripts/coccinelle. Hence I added
GPL-2.0-only consitently with the mentioned patch.

Cc: linux-spdx@xxxxxxxxxxxxxxx
Cc: Elena Reshetova <elena.reshetova@xxxxxxxxx>
Signed-off-by: Matthias Maennich <maennich@xxxxxxxxxx>
---
 scripts/coccinelle/api/atomic_as_refcounter.cocci | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/coccinelle/api/atomic_as_refcounter.cocci b/scripts/coccinelle/api/atomic_as_refcounter.cocci
index 988120e0fd67..0f78d94abc35 100644
--- a/scripts/coccinelle/api/atomic_as_refcounter.cocci
+++ b/scripts/coccinelle/api/atomic_as_refcounter.cocci
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 // Check if refcount_t type and API should be used
 // instead of atomic_t type when dealing with refcounters
 //
-- 
2.22.0.657.g960e92d24f-goog