Update FVP model version to 11.12.35

Updated FVP model version to 11.12.35 as per latest
stable release communicated by the model team and updated
'hercules' and 'zeus' models as below:

1. Changed 'hercules' model script name to 'cortex-a78x4'.
2. Changed 'zeus' model script name to 'neoverse-v1x4'.
3. Changed 'hercules' model from 'FVP_Base_Herculesx4'
   to 'FVP_Base_Cortex-A78x4'.
4. Changed 'zeus' model from 'FVP_Base_Zeusx4' to
   'FVP_Base_Neoverse-V1x4'.

Also, retained the model version for 'FVP_RD_E1_edge' as
11.9.41

Change-Id: I4cd0d29070a7cf76b7652788a539ab4f5480bd40
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
diff --git a/model/cortex-a78x4.sh b/model/cortex-a78x4.sh
new file mode 100644
index 0000000..0cebfcc
--- /dev/null
+++ b/model/cortex-a78x4.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2020, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+set_model_path "$warehouse/SysGen/Models/$model_version/$model_build/models/$model_flavour/FVP_Base_Cortex-A78x4"
+
+# Option not supported on A78 FVP yet.
+export no_quantum=""
+
+source "$ci_root/model/fvp_common.sh"