Skip using fluxes provided by land component for first time step

[uturuncoglu]

Due to the dependency between atmosphere and land components, the atmosphere model gets all zero from land component model in the initial coupling time step. This PR aims to fix this issue and skips data coming from land component (all zero) at first coupling time step and use the land fluxes calculated by noahmp land model found in ccpp/physics. After first coupling time step, the coupled configuration (cpld_control_p8_lnd) will continue to use fluxes coming from component model.

[uturuncoglu]

JFYI, The top level UFS WM PR is still in draft mode. I am still working on it.

[uturuncoglu]

@grantfirl JFYI, I might also need to introduce another input.nml option to make skipping first time step for land optional since it is related with the run sequence of the coupled application and we might not need for the data atmosphere coupled configurations.

[grantfirl]

@grantfirl JFYI, I might also need to introduce another input.nml option to make skipping first time step for land optional since it is related with the run sequence of the coupled application and we might not need for the data atmosphere coupled configurations.

@uturuncoglu Thanks. I see that the upstream PRs are in draft. We'll re-review if necessary. There are several PRs to be merged before this one, so it's unlikely this would bubble to the top in 2 weeks time anyway.

[uturuncoglu]

@grantfirl Thanks. That is totally fine. I am still working on it. Once it is ready I'll change UFS WM level PR from draft to ready to review.