build_helper: Add build for RSE-RD-V3-R1 platform

Add build for RSE-RD-V3-R1 for:
- per-patch (single GCC_2_Release_BL2_NSOFF_CFG0)
- nightly
- release
- platform

Signed-off-by: Nicola Mazzucato <nicola.mazzucato@arm.com>
Change-Id: Ic5d723d1e5eb05f3f0e3a1326f18b853230879d8
diff --git a/build_helper/build_helper_config_maps.py b/build_helper/build_helper_config_maps.py
index 372f9da..3a4718e 100644
--- a/build_helper/build_helper_config_maps.py
+++ b/build_helper/build_helper_config_maps.py
@@ -29,6 +29,7 @@
     "arm/rse/tc/tc3"                     : "RSE_TC3",
     "arm/rse/tc/tc4"                     : "RSE_TC4",
     "arm/rse/neoverse_rd/rdv3"           : "RSE_RDV3",
+    "arm/rse/neoverse_rd/rdv3r1"         : "RSE_RDV3R1",
     "arm/rse/automotive_rd/rd1ae"        : "RSE_RD1AE",
     "cypress/psoc64"                     : "psoc64",
     "lairdconnectivity/bl5340_dvk_cpuapp": "BL5340",
@@ -110,9 +111,11 @@
     "PACBTI_STD"   : "-DCONFIG_TFM_BRANCH_PROTECTION_FEAT=BRANCH_PROTECTION_STANDARD",
     "PACBTI_NONE"  : "-DCONFIG_TFM_BRANCH_PROTECTION_FEAT=BRANCH_PROTECTION_NONE",
 
-    # Platform Variants Support for RSE_RDV3
+    # Platform Variants Support for RSE_RDV3 & RSE_RDV3R1
     "CFG0"         : "-DTFM_PLATFORM_VARIANT=0",
     "CFG1"         : "-DTFM_PLATFORM_VARIANT=1",
+
+    # Platform Variants Support for RSE_RDV3
     "CFG2"         : "-DTFM_PLATFORM_VARIANT=2",
 
     # Extra test cases