Added sceGxmSetDefaultRegionClipAndViewport prototype.
Added sceGxmSetDefaultRegionClipAndViewport prototype.

vitasdk/vita-headers,Rinnegatamante/vita-headers,Rinnegatamante/vita-headers,Rinnegatamante/vita-headers,vitasdk/vita-headers,vitasdk/vita-headers,vitasdk/vita-headers,Rinnegatamante/vita-headers