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: 29223
Change-Id: Iad5b0e9d95f4ec6fdd9229758904e633928dc05d
Signed-off-by: Kristal Dale <kristal.dale@intel.com>