Add restart capability in HAFS prep job

[BinLiu-NOAA]

Description

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Please add restart capability for the HAFS atm_prep_mvnest job at next upgrade.

The WCOSS standard document requires any model run more than 15 minutes should have restart ability. Currently, the HAFS atm_prep_mvnest job runs avg > 55 mins. Please consider to add restart capability in the HAFS atm_prep_mvnest job.

Proposed solution

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Status (optional)

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Related to (optional)

Directly reference any related issues or PRs in this or other repositories, and describe how they are related. Examples:

• fixed by hafs-community/hafs/pull/<pr_number>
• dependent upon ufs-community/ufs-weather-model/pull/<pr_number>
• associated with noaa-emc/upp/pull/<pr_number>
• related to hafs-community/GSI/issues/<issue_number>