Add more threading tests for FATES configurations

I started noticing this in #1643 where we noticed that there is only one FATES threaded test. In that issue we added another one for MIMICS.

I also argued that we should have more testing for FATES-SP since it's the FATES configuration with the biggest differences in CTSM code itself. It was actually a red herring that I talked about that in the MIMICS PR, but somehow my brain had conflated the two.

Currently the two FATES threaded tests are:

``` xml


```