Fixed task_ipc_mode config not works as expected

The key change is that i replaced `if (SwooleG.task_ipc_mode > 0)` with `if (SwooleG.task_ipc_mode == SW_IPC_MSGQUEUE)` in https://github.com/bixuehujin/swoole-src/blob/c07d2b76bbfce078e9fcd573e0a404e0fbddea98/src/factory/FactoryProcess.c#L287