fix(machine): Add 'rdrand' feature even if qemu < 8.0.0

This was added in qemu 4.0.0 and we refuse to run
when 4.2.0 or lower is used anyway. Unikraft can now
with rdrand only, so this is not a hard requriment.

Signed-off-by: Cezar Craciunoiu <cezar.craciunoiu@unikraft.io>

machine/qemu/v1alpha1.go

@@ -421,10 +421,9 @@ func (service *machineV1alpha1Service) Create(ctx context.Context, machine *mach
 		if machine.Spec.Emulation {
 			onFeatures := QemuCPUFeatures{QemuCPUFeaturePdpe1gb}
 
-			if qemuVersion.LessThan(QemuVersion8_0_0) {
-				log.G(ctx).Warn("QEMU version is less than 8.0.0, consider updating to be able to emulate Unikraft v0.17.0 and greater")
-			} else {
-				onFeatures = append(onFeatures, QemuCPUFeatureRdrand, QemuCPUFeatureRdseed)
+			onFeatures = append(onFeatures, QemuCPUFeatureRdrand)
+			if qemuVersion.GreaterThanEqual(QemuVersion8_0_0) {
+				onFeatures = append(onFeatures, QemuCPUFeatureRdseed)
 			}
 
 			qopts = append(qopts,