Biofuel crop slatop parameter values changed?

In my work on one of the tables for #4058, I noticed that the `slatop` parameter was out of date. The current version of the docs has 0.057 for _Miscanthus_ and 0.049 for switchgrass, whereas the ctsm6 parameter files have 0.035 for both. I thought this was suspicious—there were very specific values before, and now they just take on one of the two other standard values:
```
temperate_corn : 0.05
irrigated_temperate_corn : 0.05
spring_wheat : 0.035
irrigated_spring_wheat : 0.035
temperate_soybean : 0.035
irrigated_temperate_soybean: 0.035
cotton : 0.035
irrigated_cotton : 0.035
rice : 0.035
irrigated_rice : 0.035
sugarcane : 0.05
irrigated_sugarcane : 0.05
miscanthus : 0.035
irrigated_miscanthus : 0.035
switchgrass : 0.035
irrigated_switchgrass : 0.035
tropical_corn : 0.05
irrigated_tropical_corn : 0.05
tropical_soybean : 0.035
irrigated_tropical_soybean : 0.035
```

Do we know if this change was intentional? I don't see any issue or PR that mentions it. And it's a bit strange that all the `clm5*` paramfiles starting with `clm5_params.c200519.nc` have 0.057/0.049, and all the `ctsm6*` paramfiles have 0.035.