runtime: run prestart hooks before starting VM for FC

Add a new hypervisor capability to tell if it supports device hotplug.
If not, we should run prestart hooks before starting new VMs as nerdctl
is using the prestart hooks to set up netns. To make nerdctl + FC
to work, we need to run the prestart hooks before starting new VMs.

Fixes: #6384
Signed-off-by: Peng Tao <bergwolf@hyper.sh>

src/runtime/virtcontainers/qemu_arch_base.go

@@ -300,6 +300,7 @@ func (q *qemuArchBase) capabilities(hConfig HypervisorConfig) types.Capabilities
 	var caps types.Capabilities
 	caps.SetBlockDeviceHotplugSupport()
 	caps.SetMultiQueueSupport()
+	caps.SetNetworkDeviceHotplugSupported()
 	if hConfig.SharedFS != config.NoSharedFS {
 		caps.SetFsSharingSupport()
 	}