Change copyright information in the keystone docker image

[anvithks]

Issue/Feature Description:
The keystone docker image has two files keystone.sh and entrypoint.sh which have the older Huawei copyright information.
the copyright information was changed in the files in the source code here but the docker image was not updated. The docker image still reflects the old copyright information.
Why this issue to fixed / feature is needed(give scenarios or use cases):
the old copyright is not consistent with the current SODA copyright.
How to reproduce, in case of a bug:

1. Install SODA.
2. Exec into the authchecker docker container.
3. check the contents of the files keystone.sh and entrypoint.sh

Other Notes / Environment Information: (Please give the env information, log link or any useful information for this issue)
Keystone.sh

Entrypoint.sh