chore: rename hayes to a520

Rename Cortex-hayes to Cortes-A520

Change-Id: Ic574b55b1aaf11b5bf7b583e244245e7b54bdb22
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
(cherry picked from commit dea3d71e9a6685e29bd6cad4464dfe55ce9fb66a)
diff --git a/docs/plat/arm/tc/index.rst b/docs/plat/arm/tc/index.rst
index 2784ec1..c5058f5 100644
--- a/docs/plat/arm/tc/index.rst
+++ b/docs/plat/arm/tc/index.rst
@@ -17,10 +17,9 @@
 (TARGET_PLATFORM=1), TC2 (TARGET_PLATFORM=2) platforms w.r.t to TF-A
 is the CPUs supported as below:
 
--  TC0 has support for Cortex A510, Cortex A710 and Cortex X2.
--  TC1 has support for Cortex A510, Cortex Makalu and Cortex X3.
--  TC2 has support for Hayes and Cortex A720 Arm CPUs.
-
+-  TC0 has support for Cortex A510, Cortex A710 and Cortex X2. (Note TC0 is now deprecated)
+-  TC1 has support for Cortex A510, Cortex A715 and Cortex X3.
+-  TC2 has support for Cortex A520, Cortex A720 and Cortex x4.
 
 Boot Sequence
 -------------