Not the Ronaldo who can’t seem to go into a tunnel without hitting something or the other. The other one. Ronaldo scored his first goal since returning to football more than a year after knee surgery, heading a late equalizer for Corinthians in a 1-1 draw against rival Palmeiras in the Sao Paulo state championship on Sunday. Ronaldo hadn’t scored a goal in official matches since Jan. 13, 2008, when he scored in AC Milan’s 5-2 victory over Napoli. Now how about that…