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### _Why are the changes needed?_
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Add kubernetes configmap yaml file
```
kubectl apply -f docker/kyuubi-configmap.yaml
```
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible
- [ ] Add screenshots for manual tests if appropriate
- [ ] [Run test](https://kyuubi.readthedocs.io/en/latest/tools/testing.html#running-tests) locally before make a pull request
Closes#878 from timothy65535/ky-877.
Closes#877
dff774de [timothy65535] improve patch
79e79d03 [timothy65535] keep origin configmap usage
ed28c78a [timothy65535] [KYUUBI #877] Add kubernetes configmap yaml file
Authored-by: timothy65535 <timothy65535@163.com>
Signed-off-by: Cheng Pan <chengpan@apache.org>
