Enhance setns syscall decoding

* process.c (sys_setns): New function.
Decode the 2nd syscall argument using clone_flags.
* linux/syscall.h (sys_setns): New prototype.
* linux/dummy.h (sys_setns): Remove.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
3 files changed