Sync model scripts with internal CI

Sync model scripts with open-ci patch:
539c151d0cd99a5e6ca6c0e6966f6d8579fe864e

Signed-off-by: Zelalem <zelalem.aweke@arm.com>
Change-Id: I0d28301c86b8efd633a5ff31e548e2bfb81507a7
diff --git a/model/css-rde1edge.sh b/model/css-rde1edge.sh
index e397b75..84c0a12 100644
--- a/model/css-rde1edge.sh
+++ b/model/css-rde1edge.sh
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
-set_model_path "/arm/projectscratch/ssg/trusted-fw/models/0.0_5137/FVP_RD_E1_edge"
+set_model_path "$warehouse/SysGen/SubSystemModels/$model_version/$model_build/models/$model_flavour/FVP_RD_E1_edge"
 
 cat <<EOF >"$model_param_file"
 -C board.flashloader0.fname=$fip_bin