gpu: Moved the PCIe configs to drivers

The hypervisor_state file was the wrong location for the PCIe Port
settings, moved everything under device umbrella, where it can be
consumed more easily and we do not get into circular deps.

Signed-off-by: Zvonko Kaiser <zkaiser@nvidia.com>

src/runtime/pkg/hypervisors/hypervisor_state.go

@@ -5,7 +5,7 @@
 
 package hypervisors
 
-import "fmt"
+import "github.com/kata-containers/kata-containers/src/runtime/pkg/device/config"
 
 // Bridge is a bridge where devices can be hot plugged
 type Bridge struct {
@@ -28,34 +28,6 @@ type CPUDevice struct {
 	ID string
 }
 
-// PCIePort distinguish only between root and switch port
-type PCIePort string
-
-const (
-	// RootPort attach VFIO devices to a root-port
-	RootPort PCIePort = "root-port"
-	// SwitchPort attach VFIO devices to a switch-port
-	SwitchPort = "switch-port"
-	// BridgePort is the default
-	BridgePort = "bridge-port"
-	// NoPort is for disabling VFIO hotplug/coldplug
-	NoPort = "no-port"
-)
-
-func (p PCIePort) String() string {
-	switch p {
-	case RootPort:
-		fallthrough
-	case SwitchPort:
-		fallthrough
-	case BridgePort:
-		fallthrough
-	case NoPort:
-		return string(p)
-	}
-	return fmt.Sprintf("<unknown PCIePort: %s>", string(p))
-}
-
 type HypervisorState struct {
 	BlockIndexMap map[int]struct{}
 	// Type of hypervisor, E.g. qemu/firecracker/acrn.
@@ -76,7 +48,7 @@ type HypervisorState struct {
 	Pid                  int
 	PCIeRootPort         int
 	PCIeSwitchPort       int
-	HotPlugVFIO          PCIePort
-	ColdPlugVFIO         PCIePort
+	HotPlugVFIO          config.PCIePort
+	ColdPlugVFIO         config.PCIePort
 	HotplugVFIOOnRootBus bool
 }