acpi/acpigen_dptf: Add TPCH participant for dptf

Add TPCH as participant for dptf control functionality.

BUG=b:198582766
BRANCH=None
TEST=Build FW and test on brya0 board

Change-Id: I17c0c6cfb7804dd2caa188acc93f1a63b47cab36
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57924
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

src/acpi/acpigen_dptf.c

@@ -70,6 +70,8 @@ static const char *namestring_of(enum dptf_participant participant)
 		return "TSR2";
 	case DPTF_TEMP_SENSOR_3:
 		return "TSR3";
+	case DPTF_TPCH:
+		return "TPCH";
 	default:
 		return "";
 	}

src/include/acpi/acpigen_dptf.h

@@ -24,6 +24,7 @@ enum dptf_participant {
 	DPTF_TEMP_SENSOR_1,
 	DPTF_TEMP_SENSOR_2,
 	DPTF_TEMP_SENSOR_3,
+	DPTF_TPCH,
 	DPTF_PARTICIPANT_COUNT,
 };