docs: deprecate CryptoCell-712/713 drivers

We plan to deprecate the CryptoCell-712 and CryptoCell-713 drivers in
TF-A release v2.9 and eventually remove the code from the tree in
release 3.0.

The only upstream platforms which use these drivers today are the Arm
Ltd developpment platforms, such as Juno.

Write this information down into the "Release Processes" document.

Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Change-Id: Ib064292733a271ecbff0dde315911017e2c4da7e
diff --git a/docs/about/release-information.rst b/docs/about/release-information.rst
index 8a87e84..cd52460 100644
--- a/docs/about/release-information.rst
+++ b/docs/about/release-information.rst
@@ -84,6 +84,10 @@
 +================================+=============+=========+=========================================================+
 | io_dummy driver                |   Nov'22    |   2.9   | No more used by any upstream platform                   |
 +--------------------------------+-------------+---------+---------------------------------------------------------+
+| CryptoCell-712                 |     2.9     |   3.0   | No longer maintained.                                   |
++--------------------------------+-------------+---------+---------------------------------------------------------+
+| CryptoCell-713                 |     2.9     |   3.0   | No longer maintained.                                   |
++--------------------------------+-------------+---------+---------------------------------------------------------+
 
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