PPC fix works for ARM, too

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@221551 91177308-0d34-0410-b5e6-96231b3b80d8
Use @rpath for ASan dylib in Makefiles

Reviewed at http://reviews.llvm.org/D6176



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@221556 91177308-0d34-0410-b5e6-96231b3b80d8