Moved module "uuidutils" from oslo-incubator to oslo.utils

Since uuidutils was moved from oslo-incubator
to oslo.utils we need to replace the obsolete module.

Co-Authored-By: Abhishek Chanda <abhishek@cloudscaling.com>

Change-Id: I87bad91900e503597d9806b423ff8ef7b0aacb00
Closes-Bug: #1402618