linux-user: Update m68k syscall definitions to match Linux 4.4.

#define TARGET_NR_process_vm_writev     346

#define TARGET_NR_kcmp                  347

#define TARGET_NR_finit_module          348

#define TARGET_NR_sched_setattr         349

#define TARGET_NR_sched_getattr         350

#define TARGET_NR_renameat2             351

#define TARGET_NR_getrandom             352

#define TARGET_NR_memfd_create          353

#define TARGET_NR_bpf                   354

#define TARGET_NR_execveat              355

#define TARGET_NR_socket                356

#define TARGET_NR_socketpair            357

#define TARGET_NR_bind                  358

#define TARGET_NR_connect               359

#define TARGET_NR_listen                360

#define TARGET_NR_accept4               361

#define TARGET_NR_getsockopt            362

#define TARGET_NR_setsockopt            363

#define TARGET_NR_getsockname           364

#define TARGET_NR_getpeername           365

#define TARGET_NR_sendto                366

#define TARGET_NR_sendmsg               367

#define TARGET_NR_recvfrom              368

#define TARGET_NR_recvmsg               369

#define TARGET_NR_shutdown              370

#define TARGET_NR_recvmmsg              371

#define TARGET_NR_sendmmsg              372

#define TARGET_NR_userfaultfd           373

#define TARGET_NR_membarrier            374

#define TARGET_NR_mlock2                375