mb/intel/mtlrvp: Create mtlrvp4es_p_ext_ec variant

This patch creates a new variant mtlrvp4es_p_ext_ec. The new
variant will support ESx samples. The existing mtlrvp_p_ext_ec
variant will support the QS samples.

BUG=b:310775573
TEST= Build and boot mtlrvp4es_p_ext_ec.

Signed-off-by: Usha P <usha.p@intel.com>
Change-Id: Iad72c0f6343af149d16d8b1f8639ba496f6aab0c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79052
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
diff --git a/src/mainboard/intel/mtlrvp/Kconfig b/src/mainboard/intel/mtlrvp/Kconfig
index f225aa5..26faf91 100644
--- a/src/mainboard/intel/mtlrvp/Kconfig
+++ b/src/mainboard/intel/mtlrvp/Kconfig
@@ -26,6 +26,9 @@
 
 config BOARD_INTEL_MTLRVP_P_EXT_EC
 	select BOARD_EXT_EC_SPECIFIC_OPTIONS
+
+config BOARD_INTEL_MTLRVP4ES_P_EXT_EC
+	select BOARD_EXT_EC_SPECIFIC_OPTIONS
 	select SOC_INTEL_METEORLAKE_PRE_PRODUCTION_SILICON
 
 config BOARD_INTEL_MTLRVP_P_MCHP
@@ -61,7 +64,7 @@
 
 config BASEBOARD_DIR
 	string
-	default "mtlrvp_p" if BOARD_INTEL_MTLRVP_P || BOARD_INTEL_MTLRVP_P_EXT_EC || BOARD_INTEL_MTLRVP_P_MCHP
+	default "mtlrvp_p" if BOARD_INTEL_MTLRVP_P || BOARD_INTEL_MTLRVP_P_EXT_EC || BOARD_INTEL_MTLRVP_P_MCHP || BOARD_INTEL_MTLRVP4ES_P_EXT_EC
 
 config GBB_HWID
 	string
@@ -83,7 +86,7 @@
 config VARIANT_DIR
 	string
 	default "mtlrvp_p" if BOARD_INTEL_MTLRVP_P
-	default "mtlrvp_p_ext_ec" if BOARD_INTEL_MTLRVP_P_EXT_EC || BOARD_INTEL_MTLRVP_P_MCHP
+	default "mtlrvp_p_ext_ec" if BOARD_INTEL_MTLRVP_P_EXT_EC || BOARD_INTEL_MTLRVP_P_MCHP || BOARD_INTEL_MTLRVP4ES_P_EXT_EC
 
 config DEVICETREE
 	string
@@ -99,7 +102,7 @@
 choice
 	prompt "ON BOARD EC"
 	default MTL_INTEL_EC if BOARD_INTEL_MTLRVP_P
-	default MTL_CHROME_EC if BOARD_INTEL_MTLRVP_P_EXT_EC || BOARD_INTEL_MTLRVP_P_MCHP
+	default MTL_CHROME_EC if BOARD_INTEL_MTLRVP_P_EXT_EC || BOARD_INTEL_MTLRVP_P_MCHP || BOARD_INTEL_MTLRVP4ES_P_EXT_EC
 	help
 	  This option allows you to select the on board EC to use.
 	  Select whether the board has Intel EC or/and Chrome EC
diff --git a/src/mainboard/intel/mtlrvp/Kconfig.name b/src/mainboard/intel/mtlrvp/Kconfig.name
index 9f61aff..696e6e6 100644
--- a/src/mainboard/intel/mtlrvp/Kconfig.name
+++ b/src/mainboard/intel/mtlrvp/Kconfig.name
@@ -2,7 +2,10 @@
 	bool "Meteorlake-P RVP"
 
 config BOARD_INTEL_MTLRVP_P_EXT_EC
-	bool "Meteorlake-P RVP with Chrome EC"
+	bool "Meteorlake-P RVP with Chrome EC for Prod Silicon"
+
+config BOARD_INTEL_MTLRVP4ES_P_EXT_EC
+	bool "Meteorlake-P RVP with Chrome EC for non-Prod Silicon"
 
 config BOARD_INTEL_MTLRVP_P_MCHP
 	bool "Meteorlake-P RVP with Microchip EC"