soc/intel/cometlake: Add ISH Device ID

This Device ID is specific to CML, since it is obtained by reading ISH
configuration RO register.
In order to export ISH to kernel PCI device tree, this number must be
included in list of devices supported.

Change-Id: I6d245f1b3f0d0cfec77c31033eb20f147fd3d870
Signed-off-by: Bernardo Perez Priego <bernardo.perez.priego@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34687
Reviewed-by: Li1 Feng <li1.feng@intel.com>
Reviewed-by: Mathew King <mathewk@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/drivers/intel/ish/ish.c b/src/drivers/intel/ish/ish.c
index bc1b6fa..f506a7c 100644
--- a/src/drivers/intel/ish/ish.c
+++ b/src/drivers/intel/ish/ish.c
@@ -66,6 +66,7 @@
 
 static const unsigned short pci_device_ids[] = {
 	PCI_DEVICE_ID_INTEL_CNL_ISHB,
+	PCI_DEVICE_ID_INTEL_CML_ISHB,
 	0
 };
 
diff --git a/src/include/device/pci_ids.h b/src/include/device/pci_ids.h
index 3ac6560..2501640 100644
--- a/src/include/device/pci_ids.h
+++ b/src/include/device/pci_ids.h
@@ -2102,6 +2102,7 @@
 #define PCI_DEVICE_ID_INTEL_82437VX	0x7030
 #define PCI_DEVICE_ID_INTEL_82439TX	0x7100
 #define PCI_DEVICE_ID_INTEL_CNL_ISHB	0x9dfc
+#define PCI_DEVICE_ID_INTEL_CML_ISHB	0x02fc
 
 /* Intel 82371FB (PIIX) */
 #define PCI_DEVICE_ID_INTEL_82371FB_ISA		0x122e