Added LwMutex features
libpspkernel was adapted from PSPSDK.
SHELL_CMD("lwmtxlist", "ll", lwmtxlist_cmd, 0, "List the lwmutexs in the system", "", "[v]") \
SHELL_CMD("lwmtxinfo", "lii", lwmtxinfo_cmd, 1, "Refer LwMutex by ID and print the info", "", "uid") \