Build: Rename RDFremont to RDV3

Renames RDFremont to RDV3 in all build configurations

Change-Id: Ib8ee062204da00b04fa00bada60b71a4972d8250
Signed-off-by: Ishan Deshpande <ishdes02@a077435.arm.com>
diff --git a/build_helper/build_helper_config_maps.py b/build_helper/build_helper_config_maps.py
index 533f65b..be2c374 100644
--- a/build_helper/build_helper_config_maps.py
+++ b/build_helper/build_helper_config_maps.py
@@ -27,7 +27,7 @@
     "arm/mps4/corstone320"               : "corstone320",
     "arm/mps3/corstone310/fvp"           : "corstone310",
     "arm/rse/tc/tc3"                     : "RSE_TC3",
-    "arm/rse/rdfremont"                  : "RSE_RDFremont",
+    "arm/rse/rdv3"                       : "RSE_RDV3",
     "arm/rse/automotive_rd/rd1ae"        : "RSE_RD1AE",
     "cypress/psoc64"                     : "psoc64",
     "lairdconnectivity/bl5340_dvk_cpuapp": "BL5340",