build(fvp): add Cortex-A78C model

Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: I7a674011785f340832603567f7f312c6b6f4c774
diff --git a/fvp_utils.sh b/fvp_utils.sh
index 5365d3d..0cfbe52 100644
--- a/fvp_utils.sh
+++ b/fvp_utils.sh
@@ -82,6 +82,7 @@
 [cortex-a76x4]="${fvp_arm_std_library};FVP_Base_Cortex-A76x4"
 [cortex-a77x4]="${fvp_arm_std_library};FVP_Base_Cortex-A77x4"
 [cortex-a78x4]="${fvp_arm_std_library};FVP_Base_Cortex-A78x4"
+[cortex-a78cx4]="${fvp_arm_std_library};FVP_Base_Cortex-A78Cx4"
 [cortex-x2]="${fvp_arm_std_library};FVP_Base_Cortex-X2x4"
 [neoverse_e1x1]="${fvp_arm_std_library};FVP_Base_Neoverse-E1x1"
 [neoverse_e1x2]="${fvp_arm_std_library};FVP_Base_Neoverse-E1x2"