soc/intel: Add Kaby Lake PCH-U base device ID

Taken from Intel document 334658-003 (7th Generation Intel Processor
Family I/O for U/Y Platforms and 8th Generation Intel Processor Family
I/O for U Quad Core Platforms, Datasheet - Volume 1 of 2).

Change-Id: I1d48c8868e1e5d453d599ecec835938ce09935d0
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52702
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Timofey Komarov <happycorsair@yandex.ru>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/include/device/pci_ids.h

@@ -2860,6 +2860,7 @@
 #define PCI_DEVICE_ID_INTEL_SPT_LP_U_PREMIUM_HDCP22		0x9d4e
 #define PCI_DEVICE_ID_INTEL_SPT_LP_U_BASE_HDCP22		0x9d50
 #define PCI_DEVICE_ID_INTEL_UPT_LP_SUPER_SKU		0x9d51
+#define PCI_DEVICE_ID_INTEL_UPT_LP_U_BASE		0x9d53
 #define PCI_DEVICE_ID_INTEL_UPT_LP_U_PREMIUM		0x9d58
 #define PCI_DEVICE_ID_INTEL_UPT_LP_Y_PREMIUM		0x9d56
 #define PCI_DEVICE_ID_INTEL_APL_LPC		0x5ae8

src/soc/intel/common/block/lpc/lpc.c

@@ -153,6 +153,7 @@ static const unsigned short pci_device_ids[] = {
 	PCI_DEVICE_ID_INTEL_SPT_LP_U_PREMIUM_HDCP22,
 	PCI_DEVICE_ID_INTEL_SPT_LP_U_BASE_HDCP22,
 	PCI_DEVICE_ID_INTEL_UPT_LP_SUPER_SKU,
+	PCI_DEVICE_ID_INTEL_UPT_LP_U_BASE,
 	PCI_DEVICE_ID_INTEL_UPT_LP_U_PREMIUM,
 	PCI_DEVICE_ID_INTEL_UPT_LP_Y_PREMIUM,
 	PCI_DEVICE_ID_INTEL_APL_LPC,

src/soc/intel/skylake/bootblock/report_platform.c

@@ -78,6 +78,7 @@ static struct {
 	{ PCI_DEVICE_ID_INTEL_UPT_H_Z270, "Z270" },
 	{ PCI_DEVICE_ID_INTEL_UPT_H_B250, "B250" },
 	{ PCI_DEVICE_ID_INTEL_UPT_H_Q250, "Q250" },
+	{ PCI_DEVICE_ID_INTEL_UPT_LP_U_BASE, "Kabylake-U Base" },
 	{ PCI_DEVICE_ID_INTEL_UPT_LP_U_PREMIUM, "Kabylake-U Premium" },
 	{ PCI_DEVICE_ID_INTEL_UPT_LP_Y_PREMIUM, "Kabylake-Y Premium" },
 	{ PCI_DEVICE_ID_INTEL_UPT_LP_SUPER_SKU, "Kabylake Super Sku" },