Fix sceKernelSelfStopUnloadModule parameters

According to http://code.google.com/p/jpcsp/source/detail?r=3597
Tom Clancy's Splinter Cell Essentials and Ghost in the Shell Stand Alone Complex are still booting
Is it SelfStopUnload or StopUnloadSelf? This log doesn't match the one two lines above... Either change all of them or don't change them :)