Richman Mulholland Bush Fix

Fix for the invisible side of the bush.

Most people won't even notice this minor bug,
but I drive a lot on this road so the bug was quite obvious to me. (especially when i forget it is there and i hit invisible wall)

I don't know if some other pack features it or not already, so this fix may be redundant.
In case it isn't and someone wants to feature it in some map fixes pack feel free to do so.