Bug fix for ceiling height in GFS V16 in-line post

[WenMeng-NOAA]

Description

This PR is for solving this ceiling height issue in GFS V16 in-line post.
The detail was descripted in here
Is a change of answers expected from this PR?

Issue(s) addressed

Link the issues to be closed with this PR, whether in this repository, or in another repository.
(Remember, issues should always be created before starting work on a PR branch!)

• fixes #<issue_number>
• fixes noaa-emc/fv3atm/issues/<issue_number>

Testing

How were these changes tested?
What compilers / HPCs was it tested with?
Are the changes covered by regression tests? (If not, why? Do new tests need to be added?)
Have the ufs-weather-model regression test been run? On what platform?

• Will the code updates change regression test baseline? If yes, why? Please show the baseline directory below.
• Please commit the regression test log files in your ufs-weather-model branch

Dependencies

If testing this branch requires non-default branches in other repositories, list them.
Those branches should have matching names (ideally)

Do PRs in upstream repositories need to be merged first?
No.