dm: virtio-input: adapt Windows virtio-input driver

Update PCIR_SUBDEV_0 and PCIR_REVID in PCI configuration space to adapt
windows virtio-input driver. Otherwise virtio-input driver on Windows
will not be loaded correctly.

Tracked-On: #2962
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Yin Fengwei <fengwei.yin@intel.com>

Author: chejianj

devicemodel/hw/pci/virtio/virtio_input.c

@@ -673,8 +673,9 @@ virtio_input_init(struct vmctx *ctx, struct pci_vdev *dev, char *opts)
 	pci_set_cfgdata16(dev, PCIR_VENDOR, VIRTIO_VENDOR);
 	pci_set_cfgdata8(dev, PCIR_CLASS, PCIC_INPUTDEV);
 	pci_set_cfgdata8(dev, PCIR_SUBCLASS, PCIS_INPUTDEV_OTHER);
-	pci_set_cfgdata16(dev, PCIR_SUBDEV_0, 0x1040 + VIRTIO_TYPE_INPUT);
+	pci_set_cfgdata16(dev, PCIR_SUBDEV_0, 0x1100);
 	pci_set_cfgdata16(dev, PCIR_SUBVEND_0, VIRTIO_VENDOR);
+	pci_set_cfgdata16(dev, PCIR_REVID, 1);
 
 	if (virtio_interrupt_init(&vi->base, virtio_uses_msix())) {
 		DPRINTF(("%s, interrupt_init failed!\n", __func__));