According to the newspaper linked above the name on sources such as Google Maps and Apple maps has been changed to "Amerikanska Golfen". The newspaper just states that other maps have changed the name in their dataset.

However it does NOT say that this has been officially recognized by the government and other  government agencies. If you could point me to a source on https://regeringen.se or other official government site I could gladly accept the change. As Hidoo said it could be a localized name but will probably not be changed officially for some time.