Not at runtime. What you could do (not that you should), is given your int array is hardcoded, creating a gradle task that reads the int array and creates a kotlin file containing an enum. This enum you could then use in your code.
Not sure if this is what you want.
If you mean having at runtime an int array and then making an enum out of it - not possible. Also - why would you want this? One big advantage of enums is compiler safety - but at runtime this stage is already over