infra/rdn2: update release tag table

Update the release tag table for the RD-N2 platform by adding the tag
"RD-INFRA-2021.03.25". The corresponding FVP version number to use
with this release is also listed.

Signed-off-by: Thomas Abraham <thomas.abraham@arm.com>
Change-Id: Ia0e6a7ced42b0dd5dd64dcbb99fbe3ab16708919

docs/infra/rdn2/readme.rst

@@ -73,6 +73,8 @@ validated in each release is listed in `change log`_.
 +-----------------------+-------------------------+
 |     Release Tag       |    RD-N2 FVP Version    |
 +=======================+=========================+
+|  RD-INFRA-2021.03.25  |       11.14.24          |
++-----------------------+-------------------------+
 |  RD-INFRA-2021.01.25  |       11.13.34          |
 +-----------------------+-------------------------+
 |  RD-INFRA-2020.11.30  |       11.13.10          |