Remove interstitial variables for land and ice emissivity and update the land and ice emissivity in the routine setemis

[SMoorthi-emc]

Description

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The interstitial variables for land and ice surface emissivity are unnecessary. Removing these also enables restart reproducibility when NoahMP is used. However, removing these two interstitial variables requires some update to sfcemis routine in radiation_surface.f to define land and ice emissivity when iemslw =1 (this is true when Noah land model is called)

Solution

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The ccpp-physics code and fv3atm codes are updated to fix this issue.

Alternatives (optional)

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Related to (optional)

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[climbfuji]

Fixed by #736