[xen master] LICENSES: Clarify that the SPDX tag GPL-2.0 is deprecated

[patchbot@xxxxxxx]

commit a778dbdf443d81d30eed802018ecd498b8dd043f
Author:     Julien Grall <jgrall@xxxxxxxxxx>
AuthorDate: Mon Mar 27 19:45:14 2023 +0100
Commit:     Julien Grall <jgrall@xxxxxxxxxx>
CommitDate: Tue Apr 11 13:36:53 2023 +0100

    LICENSES: Clarify that the SPDX tag GPL-2.0 is deprecated
    
    From https://spdx.org/licenses/GPL-2.0.html, the SPDX tag GPL-2.0
    is deprecated. Instead, GPL-2.0-only should be used.
    
    Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
    Acked-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 LICENSES/GPL-2.0 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/LICENSES/GPL-2.0 b/LICENSES/GPL-2.0
index ff0812fd89..9f09528a8b 100644
--- a/LICENSES/GPL-2.0
+++ b/LICENSES/GPL-2.0
@@ -8,9 +8,9 @@ Usage-Guide:
   tag/value pairs into a comment according to the placement
   guidelines in the licensing rules documentation.
   For 'GNU General Public License (GPL) version 2 only' use:
-    SPDX-License-Identifier: GPL-2.0
-  or
     SPDX-License-Identifier: GPL-2.0-only
+  or (now deprecated)
+    SPDX-License-Identifier: GPL-2.0
   For 'GNU General Public License (GPL) version 2 or any later version' use:
     SPDX-License-Identifier: GPL-2.0+
   or
--
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