ci: update CSS models to their released version

Updated CSS models to their released version.

Change-Id: I0100e861277421fafe6badb8066fed496bc9fb97
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
diff --git a/model/tc0.sh b/model/tc0.sh
index 4b0c8bc..b05463f 100644
--- a/model/tc0.sh
+++ b/model/tc0.sh
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
-set_model_path "$warehouse/SysGen/SubSystemModels/$model_version/$model_build/models/$model_flavour/FVP_TC0"
+set_model_path "$warehouse/SysGen/SubSystemModels/11.17/18/models/$model_flavour/FVP_TC0"
 
 cat <<EOF >"$model_param_file"
 ${bl1_bin+-C css.trustedBootROMloader.fname=$bl1_bin}