soc/amd/stoneyridge: Add ST/CZ SMBus device id

The SMBus PCI device ID for Stoney wasn't updated when the code was
pulled over from hudson.  This means that the IOAPIC wasn't being
initialized in coreboot.

BUG=b:74070580
TEST=Boot Grunt, see IOAPIC init messages in console.

Change-Id: Ida5d3f3592488694681300d79444c1e26fff6a1a
Signed-off-by: Martin Roth <martinroth@chromium.org>
Reviewed-on: https://review.coreboot.org/24930
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/include/device/pci_ids.h

@@ -442,6 +442,7 @@
 #define PCI_DEVICE_ID_AMD_CZ_USB_0      0x7907
 #define PCI_DEVICE_ID_AMD_CZ_USB_1      0x7908
 #define PCI_DEVICE_ID_AMD_CZ_USB3_0     0x7914
+#define PCI_DEVICE_ID_AMD_CZ_SMBUS      0x790B
 
 #define PCI_VENDOR_ID_VLSI		0x1004
 #define PCI_DEVICE_ID_VLSI_82C592	0x0005

src/soc/amd/stoneyridge/sm.c

@@ -123,5 +123,5 @@ static struct device_operations smbus_ops = {
 static const struct pci_driver smbus_driver __pci_driver = {
 	.ops = &smbus_ops,
 	.vendor = PCI_VENDOR_ID_AMD,
-	.device = PCI_DEVICE_ID_AMD_SB900_SM,
+	.device = PCI_DEVICE_ID_AMD_CZ_SMBUS,
 };