Fixed importing hashlib due to missing sha3 and blake2 modules.

Bug: 154114625
Test: out/host/linux-x86/bin/py3-cmd -m hashlib
Change-Id: I957c85440235faf37f70c5fb2c72e417b4080891
(cherry picked from commit 418f68de3d8b7f7c130589e26729f1d93ae53102)
7 files changed