Merge "Enable Barbican build on Ubuntu ARM64"

Author: Zuul

kolla/image/unbuildable.py

@@ -49,7 +49,6 @@
     },
 
     'ubuntu+aarch64': {
-        "barbican-base",  # https://github.com/unbit/uwsgi/issues/2434
     },
 
     'centos+aarch64': {