renamed the profiling/machdep functions

git-svn-id: https://svn.code.sf.net/p/freetel/code/codec2-dev@1795 01035d8c-6547-0410-b346-abe4f91aad63
part way through changes to make fdmdv_mod use less stack, tfdmdv works

git-svn-id: https://svn.code.sf.net/p/freetel/code/codec2-dev@1796 01035d8c-6547-0410-b346-abe4f91aad63