drivers/intel/dptf: Add support for Power participant

As per Intel Dynamic Tuning revision 1.3.13 (Doc no: 541817)
Add support for TPWR device under \_SB.DPTF

BUG=b:205928013
TEST=Build, boot brya0 and dump SSDT to check TPWR device

Device (TPWR)
{
    Name (_HID, "INTC1060")  // _HID: Hardware ID
    Name (_UID, "TPWR")  // _UID: Unique ID
    Name (_STR, "Power Participant")  // _STR: Description String
    Name (PTYP, 0x11)
    Method (_STA, 0, NotSerialized)  // _STA: Status
    {
        Return (0x0F)
    }
}

Signed-off-by: Varshit B Pandya <varshit.b.pandya@intel.com>
Change-Id: I437e509f58df1777d75e5981f0a5a63095ccb6a3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62944
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/include/acpi/acpigen_dptf.h

@@ -26,6 +26,7 @@ enum dptf_participant {
 	DPTF_TEMP_SENSOR_3,
 	DPTF_TEMP_SENSOR_4,
 	DPTF_TPCH,
+	DPTF_POWER,
 	DPTF_PARTICIPANT_COUNT,
 };