fix(errata): workaround for Cortex-A510 erratum 2288014

Cortex-A510 erratum 2288014 is a Cat B erratum that applies to revisions
r0p0, r0p1, r0p2, r0p3 and r1p0, and is fixed in r1p1.

SDEN can be found here:
https://developer.arm.com/documentation/SDEN2397239

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I875519ff55be90244cc3d3a7e9f7abad0fc3c2b8
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 2fa3b9a..7ba5023 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -480,6 +480,10 @@
    Cortex-A510 CPU. This needs to be enabled only for revision r0p0, it is
    fixed in r0p1.
 
+-  ``ERRATA_A510_2288014``: This applies errata 2288014 workaround to
+   Cortex-A510 CPU. This needs to be enabled only for revisions r0p0, r0p1,
+   r0p2, r0p3 and r1p0, it is fixed in r1p1.
+
 DSU Errata Workarounds
 ----------------------