When run on a ppc64le based platform, the check-sanitizer build looks for
objects with the powerpc64le name. i.e. asan-powerpc64le.a
This change allows those objects to be built.

Differential Revision: http://reviews.llvm.org/D6043




git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@221356 91177308-0d34-0410-b5e6-96231b3b80d8