Update SEGV_* constants
Update SEGV_* constants

* xlat/sigsegv_codes.in: Add SEGV_PKUERR introduced by linux kernel
commit v4.6-rc1~68^2~23.

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