.gitignore: add missing files that should be ignored
.gitignore: add missing files that should be ignored

* .gitignore: Add ioctl_redefs[12].h and libstrace.a.

Saruta/strace,cuviper/strace,Saruta/strace,cuviper/strace,Saruta/strace,cuviper/strace,Saruta/strace,cuviper/strace,Saruta/strace,cuviper/strace