LOS ANGELES (Reuters) – Rising R&B artist Frank Ocean wants fellow singer Chris Brown prosecuted following a brawl over a parking space at a Los Angeles-area recording studio, authorities said on Monday. Brown is serving five years probation for assaulting his on-and-off girlfriend Rihanna in 2009 and risks having his probation revoked should charges be filed. In the incident on Sunday, sheriff's deputies responded to a call about a fight involving six men in West Hollywood. The deputies cited witnesses as saying that the Grammy-winning Brown, 23, punched Ocean during the brief altercation. …