Create nodepool dictionary for ansible inventory

This moves our nodepool variables more inline with how we handle our
zuul ansible variables. Both will now be a dict.

Change-Id: I069203328cce0bc2d4bf31f31351209bf2b6cb5a
Depends-On: Ia13e6e9e89d24ac3c9c62a0286fba0279b5408b3
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
2 files changed