Revert "Merge from Quantenna SDK v37.4.15.62."

This reverts commit ea0ece8e0fec89cd0c162d6962ed11b5f1115d70, reversing
changes made to 4c68df5b16068fa4b8e16922e09d1b07b413bec8.

Change-Id: I83ba1e38c2913ff091d9c64f8a0d5d4eade1abfe
173 files changed