In this commit, removed NOVA prefix from the constants as this is a
historical artifact tracing back to an openstack-only solution.
TEST PLAN:
PASS: build success of stx-openstack-helm-fluxcd and
python3-k8sapp-openstack
"build-pkgs -c -p stx-openstack-helm-fluxcd"
"build-pkgs -c -p python3-k8sapp-openstack"
PASS: bootstrap is success
Story: 2010604
Task: 48428
Depends-On: https://review.opendev.org/c/starlingx/config/+/889011
Change-Id: If8b0cc8d0750d11f7604ce419e3837b1e7f7c908
Signed-off-by: Md Irshad Sheikh <mdirshad.sheikh@windriver.com>