Setup ORIGIN/NetBSD option in sanitizer tests

Summary:
NetBSD can use the approach that exists in FreeBSD, Linux and SunOS.

Pick the FreeBSD one as marking programs with "-z origin" is useful.

Sponsored by <The NetBSD Foundation>

Reviewers: joerg, vitalybuka, kcc

Reviewed By: vitalybuka

Subscribers: emaste, fedor.sergeev, llvm-commits, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D46718

llvm-svn: 332035