[PATCH v8.0.1 08/36] docs/about/deprecated.rst: Add "since 7.1" tag to dtb-kaslr-seed deprecation

[Michael Tokarev]

From: Peter Maydell <peter.maydell@linaro.org>

In commit 5242876f37ca we deprecated the dtb-kaslr-seed property of
the virt board, but forgot the "since n.n" tag in the documentation
of this in deprecated.rst.

This deprecation note first appeared in the 7.1 release, so
retrospectively add the correct "since 7.1" annotation to it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20230420122256.1023709-1-peter.maydell@linaro.org
(cherry picked from commit ac64ebbecf80f6bc764d120f85fe9fa28fbd9e85)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
---
 docs/about/deprecated.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 1ca9dc33d6..914938fd76 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -219,8 +219,8 @@ Use the more generic event ``DEVICE_UNPLUG_GUEST_ERROR`` 
instead.
 System emulator machines
 ------------------------
 
-Arm ``virt`` machine ``dtb-kaslr-seed`` property
-''''''''''''''''''''''''''''''''''''''''''''''''
+Arm ``virt`` machine ``dtb-kaslr-seed`` property (since 7.1)
+''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
 
 The ``dtb-kaslr-seed`` property on the ``virt`` board has been
 deprecated; use the new name ``dtb-randomness`` instead. The new name
-- 
2.39.2