Radio-One has shifted 97.5 WUMJ Fayetteville/Atlanta from a simulcast of Urban AC "Majic 107.5" WAMJ Roswell to one of Classic Hip-Hop "Boom 102.9" W275BK Decatur. The change is coordinated with the debut tomorrow of the syndicated Ed Lover Show in mornings on Radio-One's Classic Hip-Hop stations. The addition of WUMJ increases Boom's coverage to the