FVP: Update FVP version for upcoming release

Moving from 11.12.38 to 11.14.21 FVP versioning, which also requires
altering path to model slightly for most FVP references.

Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: Ib3a3eccdc54aa3d758920b9d3e9cc6355d1593d5
diff --git a/model/cortex-a53x4.sh b/model/cortex-a53x4.sh
index 80ef1e6..0bd8403 100644
--- a/model/cortex-a53x4.sh
+++ b/model/cortex-a53x4.sh
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
-set_model_path "$warehouse/SysGen/Models/$model_version/$model_build/models/$model_flavour/FVP_Base_Cortex-A53x4"
+set_model_path "$warehouse/SysGen/Models/$model_version/$model_build/external/models/$model_flavour/FVP_Base_Cortex-A53x4"
 
 source "$ci_root/model/fvp_common.sh"