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/lib.go

@@ -63,6 +63,8 @@ type nvcdilib struct {
 	infolib info.Interface
 
 	mergedDeviceOptions []transform.MergedDeviceOption
+
+	optInFeatures map[string]bool
 }
 
 // New creates a new nvcdi library