Bug fix for reading sfc fluxes (DEPHYv1)

[hertneky]

Surface fluxes are not read correctly when running the SCM using DEPHYv1 format.

This issue was uncovered from LSM testing from Xia Sun awhile ago. I had mistakenly though that Grant had pulled the fixes into a PR he had open at the time. The issue was uncovered again when @egrell was attempting to run the DEPHY MPACE case.

[dustinswales]

@hertneky Can you add some details to the issue? (e.g. How did you identify the problem?)

[hertneky]

@dustinswales I added more details. Evelyn tested the fixes with MPACE, but I will also test with the ISDAC DEPHY case

[mzhangw]

The issue in coupling to LSM was reported by Dr. Xia Sun from GSL, but not from me.

[hertneky]

@mzhangw You are absolutely right! My mistake!