games-engines/renpy: increase infinite loop hardcoded values

games-engines/renpy: increase infinite loop hardcoded values

On many old hardware, e.g on my Atom netbook games hit this limit,
but otherwise work fine. Increasing the limit helps. People are
also reporting this issue in many cases (old laptops, stow tablets,
etc where games fail due to this issue and work otherwise):

https://translationprojectvisualnovels.blogspot.ru/2016/09/monster-girl-quest-android-15092016.html
https://lemmasoft.renai.us/forums/viewtopic.php?f=8&t=30521&start=90
https://steamcommunity.com/app/356530/discussions/0/365163686036650662/
(and many more, just google)

Package-Manager: Portage-2.3.6, Repoman-2.3.2
Signed-off-by: Andrew Savchenko <bircoph@gentoo.org>