soc/intel/alderlake: Add Raptor Lake device IDs

Add system agent ID for RPL QDF# Q271

TEST=Tested by ODM and "MCH: device id a71b (rev 01) is Unknown" msg is
gone

Signed-off-by: Lawrence Chang <lawrence.chang@intel.corp-partner.google.com>
Change-Id: I6fd51d9915aa59d012c73abc2477531643655e54
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68565
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kane Chen <kane.chen@intel.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>

src/soc/intel/alderlake/fsp_params.c

@@ -517,6 +517,7 @@ static uint16_t get_vccin_aux_imon_iccmax(void)
 	case PCI_DID_INTEL_RPL_P_ID_1:
 	case PCI_DID_INTEL_RPL_P_ID_2:
 	case PCI_DID_INTEL_RPL_P_ID_3:
+	case PCI_DID_INTEL_RPL_P_ID_4:
 		tdp = get_cpu_tdp();
 		if (tdp == TDP_45W)
 			return ICC_MAX_TDP_45W;