runtime: support non-root for clh

This change enables to run cloud-hypervisor VMM using a non-root user
when rootless flag is set true in the configuration

Fixes: #2567

Signed-off-by: Feng Wang <fwang@confluent.io>

src/runtime/pkg/katautils/config.go

@@ -1046,6 +1046,7 @@ func newClhHypervisorConfig(h hypervisor) (vc.HypervisorConfig, error) {
 		EnableAnnotations:              h.EnableAnnotations,
 		DisableSeccomp:                 h.DisableSeccomp,
 		ConfidentialGuest:              h.ConfidentialGuest,
+		Rootless:                       h.Rootless,
 		DisableSeLinux:                 h.DisableSeLinux,
 		DisableGuestSeLinux:            h.DisableGuestSeLinux,
 		NetRateLimiterBwMaxRate:        h.getNetRateLimiterBwMaxRate(),