FVP Doc: Update list of supported FVP platforms

This patch adds the following models
 FVP_Base_Neoverse-E1x1
 FVP_Base_Neoverse-E1x2
 FVP_Base_Neoverse-E1x4
to the list of supported FVP platforms.

Change-Id: Ib526a2a735f17724af3a874b06bf69b4ca85d0dd
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>

docs/plat/arm/fvp/index.rst

@@ -37,6 +37,9 @@ Arm FVPs without shifted affinities, and that do not support threaded CPU cores
 -  ``FVP_Base_Cortex-A76AEx4``
 -  ``FVP_Base_Cortex-A76AEx8``
 -  ``FVP_Base_Cortex-A77x4``
+-  ``FVP_Base_Neoverse-E1x1``
+-  ``FVP_Base_Neoverse-E1x2``
+-  ``FVP_Base_Neoverse-E1x4``
 -  ``FVP_Base_Neoverse-N1x4``
 -  ``FVP_Base_Zeusx4``
 -  ``FVP_CSS_SGI-575`` (Version 11.10 build 25)