[Sanitizer] checks ASLR on FreeBSD

- Especially MemorySanitizer fails if those sysctl configs are enabled.

Reviewers: vitalybuka, emaste, dim

Reviewed By: dim

Differential Revision: https://reviews.llvm.org/D66582

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@369708 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed