A source cited by online tipster The Malignant claims the iPhone 7 will support faster charging speeds. The accompanying Twitter photo shows what appears to be an updated circuit board that the source claims will support “at least” a 5-volt, 2-amp charging speed. Current iPhone chargers are only rated up to 1 amp, but as we’ve pointed out in the past, current iPhones can charge a bit faster at times when using a 2.1A iPad charger.…