linux-user: Update sh4 syscall definitions to match Linux 4.8

#define TARGET_NR_process_vm_writev     366

#define TARGET_NR_kcmp                  367

#define TARGET_NR_finit_module          368

#define TARGET_NR_sched_getattr         369

#define TARGET_NR_sched_setattr         370

#define TARGET_NR_renameat2             371

#define TARGET_NR_seccomp               372

#define TARGET_NR_getrandom             373

#define TARGET_NR_memfd_create          374

#define TARGET_NR_bpf                   375

#define TARGET_NR_execveat              376

#define TARGET_NR_userfaultfd           377

#define TARGET_NR_membarrier            378

#define TARGET_NR_mlock2                379

#define TARGET_NR_copy_file_range       380

#define TARGET_NR_preadv2               381

#define TARGET_NR_pwritev2              382