Return an error in FILES based on SDK version.

Tested to require this exact version to return that error.  Not sure if
any games will actually hit this anyway, but they did with lower SDK
versions.
Use a time delay to change sceUtility statuses.

This is probably more based on IO (maybe even loading and unloading
the module for the dialog or something?) but time should approximate it.

May improve games not expecting the status to switch right away.
Merge pull request #5368 from unknownbrackets/savedata

Use a delay to approximate timing of savedata status changes