Add kernel.Saver.OCIEnviron().

PiperOrigin-RevId: 682028684

pkg/sentry/kernel/kernel.go

@@ -392,6 +392,7 @@ type Kernel struct {
 // Saver is an interface for saving the kernel.
 type Saver interface {
 	SaveAsync() error
+	OCIEnviron(containerName string) []string
 }
 
 // InitKernelArgs holds arguments to Init.