use-of-uninitialized-value in PPC post printer

use-of-uninitialized-value in PPC post printer: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). MemorySanitizer: use-of-uninitialized-value in function PPC post printer in file capstonenext/arch/PowerPC/PPCInstPrinter.c