The 3-year-old son of rodeo star Spencer Wright has woken up just days after doctors indicated he was brain dead. “LEVI WOKE UP!” Wright’s wife, Kallie, wrote shortly after midnight Friday on Facebook. “I am shook, we don’t know much but the doctor said it was okay for me to get excited about that and I AM! My baby is so tough,” she wrote. “He got a little wild so we had to settle him down again but my heart!” Levi drove his toy tractor into a Utah river on Tuesday, and he was not expected to survive. When doctors initially told the Wrights that Levi was brain dead, the family said they intend…