There is no support in liquibase to save and then recreate a view. There is also not a way to make a new changeSet with a "re-run this changeSet" change.
If you have the view already defined in your changelog file there isn't anything built in to have that changeSet re-run. I created https://liquibase.jira.com/browse/CORE-1699 for that functionality but it isn't there now.
If you define your view in an external sql file you could originally create it with a <sqlFile> tag and then have a new changeSet with a <sqlFile> that points back to the same file.
With a little java coding, you could also create a custom change class that looks up the original createView changeSet and re-executes the contained changes.
Nathan