Update conf.py for release notes to include the project
variable, set to the project name. This is so the string
above the left nav renders the project name.
Story: 2004900
Task: 29226
Change-Id: Ic64f0e1e45fc2b6fe141193ac9e173fcce17b26b
Signed-off-by: Kristal Dale <kristal.dale@intel.com>