Fixed missing memory cleanup in __kmp_affinity_create_hwloc_map()

Cleanup: fixed missing memory cleanup in couple of corner cases. Fixes possible
memory leak in some corner cases

Patch by Andrey Churbanov

Differential Revision: http://reviews.llvm.org/D21355


git-svn-id: https://llvm.org/svn/llvm-project/openmp/trunk@272946 91177308-0d34-0410-b5e6-96231b3b80d8