Use include-persistenced-socket feature for CDI mode

This change ensures that the internal CDI representation includes
the persistenced socket if the include-persistenced-socket feature
flag is enabled.

Signed-off-by: Evan Lezar <elezar@nvidia.com>

pkg/nvcdi/options.go

@@ -155,3 +155,14 @@ func WithLibrarySearchPaths(paths []string) Option {
 		o.librarySearchPaths = paths
 	}
 }
+
+// WithOptInFeature sets a specific opt-in feature.
+// Note that previous opt-in-features are not removed.
+func WithOptInFeature(feature string, enabled bool) Option {
+	return func(n *nvcdilib) {
+		if n.optInFeatures == nil {
+			n.optInFeatures = make(map[string]bool)
+		}
+		n.optInFeatures[feature] = enabled
+	}
+}