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
It is SelfStopUnload
{0xD675EBB8,WrapU_UUU<sceKernelSelfStopUnloadModule>, "sceKernelSelfStopUnloadModule"},