Revert "Revert "Build FUTILITY tool from futility-host."" am: 69ad150dd3 am: 56e0166eb8 am: 98eb433d99 am: 33a36d4ed2 am: 89fce5b071
am: 37ccbd54db

Change-Id: I4565494d30c8c9ba8066faa223d20adc28950f83