It's not obvious what your asking for here? Do you mean localization or location??
If your asking for localization of the user consent dialog... that's a bit of a pain. The dialog is provided by Admob, but only in English. So we would need to come up with some sort of translation system and modify their SDK.
If your asking to enable location data for adverts, Admobs own advice is "You should never request location permissions from users for the sole purpose of advertising.". These adverts are location based not localized ( shops near to you etc. ).
If your game needs location data for some reason, you can add a cordova plugin that supplies Android location APIs. It will ask permission for user location, and Admob will automatically apply the location data to requests once permission has been granted.
I haven't been able to find any other documentation related to localization, was it something else you were referring to?