[PowerPC]Disable randomized address space on Linux ppc64le
[PowerPC]Disable randomized address space on Linux ppc64le

Recent versions of Ubuntu (17.04 and 18.04) on PowerPC have introduced changes
to Address Space Layout Randomization (ASLR) that is causing 500+ sanitizer
failures. This patch disables ASLR when running the sanitizers on PowerPC 64bit
LE.

Differential Revision: https://reviews.llvm.org/D52900

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@346030 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt