[Fix] ToAU mission 7 getting stuck on CS option

[Xaver-DaRed]

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What does this pull request do?

Adds missing event update when a concrete option was chosen.

Without it, the dialog would get stuck, because the first parameter controls (read: hides) which options appear. It would then only allow to pich the same option over and over without advancing the CS.

Steps to test these changes

Run ToAU7. Talk to naja. Be presented this options:

Select It's a prince. when promted. Be presented this options:

Option Went home. finishes the cutscene (and the mission), no matter if the other option was ever chosen.