soc/intel/tigerlake: Update pci dev definition

This change updates pci dev definition according to TGL EDS.
Add GSPI3 case in chip.c according to updated pci dev definitions.

Reference
TGL Process EDS#575681 rev1.0
TGL PCH EDS#576591 rev1.2

BUG=none
BRANCH=none
TEST=Build and boot tigerlake rvp board

Signed-off-by: Wonkyu Kim <wonkyu.kim@intel.com>
Change-Id: I4717ac3cc877b13978b18ada504740512f10c709
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38341
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/tigerlake/chip.c b/src/soc/intel/tigerlake/chip.c
index 2637cf8..6f6e153 100644
--- a/src/soc/intel/tigerlake/chip.c
+++ b/src/soc/intel/tigerlake/chip.c
@@ -97,6 +97,7 @@
 	case PCH_DEVFN_GSPI0:	return "SPI0";
 	case PCH_DEVFN_GSPI1:	return "SPI1";
 	case PCH_DEVFN_GSPI2:	return "SPI2";
+	case PCH_DEVFN_GSPI3:   return "SPI3";
 	/* Keeping ACPI device name coherent with ec.asl */
 	case PCH_DEVFN_ESPI:	return "LPCB";
 	case PCH_DEVFN_HDA:	return "HDAS";