Revert "Revert "Build FUTILITY tool from futility-host.""

This reverts commit b9186f2b523318a5f505c253c67974f4075d9369.

The cause of the earlier breakage has been identified and fixed by
commit 4b577413ff5c43e9b857f5c1685d6909e7ca27ba.

Bug: 35467608
Test: lunch ryu-userdebug; m otatools-package
Change-Id: I0ca329a3844b7d5d74443f7495b363e0f1c1c391
2 files changed