pci: add ich9 pci id

We need a PCI ID for our new AHCI adapter. I just picked an ICH-9
because that's the one in the Q35 chipset.

This patch adds a PCI ID define for an ICH-9 AHCI adapter.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

hw/pci.h

@@ -62,6 +62,7 @@
 /* Intel (0x8086) */
 #define PCI_DEVICE_ID_INTEL_82551IT      0x1209
 #define PCI_DEVICE_ID_INTEL_82557        0x1229
+#define PCI_DEVICE_ID_INTEL_82801IR      0x2922
 
 /* Red Hat / Qumranet (for QEMU) -- see pci-ids.txt */
 #define PCI_VENDOR_ID_REDHAT_QUMRANET    0x1af4