By FEMI SALAWU   Four Nigerian hip hop acts are in the race for the Best African Act Music of Black Origin (MOBO) Awards. They are Davido, Wizkid, Yemi Alade and Patoranking. Other six acts from other African countries in the race include last year’s winner, Fuse ODG, Moelogo, Aka, Mista Silva, Shatta Wale and Silvastone. Four out of last …