POA should check for chained updates by looking for updates immediately after completing installing one

[raunakpandya]

WU releases some updates which are chained. Which means if update A isnt installed update B wont be visible. Immediately after installing udpate A, update B is visible and available. This would mean when POA runs, update A would get installed in first update cycle and update B in the next one. For some reason if the cluster was unhealthy for sometime, it would be behind on such updates for some time. Having the capability to check for new updates immediately post an update installation would probably be a good idea.