Fix aligned memory allocation in the stub library

kmp_aligned_malloc() always returned NULL on Windows (stub library only)
that may cause Fortran application crash.  With this change all memory
allocation functions were fixed to use aligned{m,re,rec}alloc() to
allocate/reallocate memory. To deallocate that memory _aligned_free() is
used in kmp_free().

Patch by Olga Malysheva

Differential Revision: https://reviews.llvm.org/D40296

llvm-svn: 319375