add entry for default fates landuse x pft mapping file

components/elm/bld/namelist_files/namelist_defaults.xml

@@ -572,10 +572,12 @@ lnd/clm2/surfdata_map/surfdata_conusx4v1_simyr2000_c160503.nc</fsurdat>
 <flanduse_timeseries hgrid="ne30np4"       rcp="2.6" sim_year_range="1850-2100"
  use_crop=".false." >lnd/clm2/surfdata_map/surfdata.pftdyn_ne30np4_rcp2.6_simyr1850-2100_c130524.nc</flanduse_timeseries>
 
-<!-- Land Use Harmonization unified data sets for dynamic FATES land use change -->
+<!-- Land Use Harmonization unified timeseries data sets for dynamic FATES land use change -->
 <fluh_timeseries hgrid="4x5" sim_year_range="1850-2015" use_fates=".true."
  >lnd/clm2/surfdata_map/fates-sci.1.68.3_api.31.0.0_tools.1.0.1/LUH2_states_transitions_management.timeseries_4x5_hist_simyr1850-2015_c231101.nc</fluh_timeseries>
 
+<!-- Land Use Harmonization static landuse x pft mapping data sets for FATES land use change -->
+<flandusepftdat hgrid="4x5" use_fates=".true." >lnd/clm2/surfdata_map/fates-sci.1.73.0_api.33.0.0/fates_landuse_pft_map_4x5_240206.nc</flandusepftdat>
 
 <!-- GLC mask datasets (relative to {csmdata}) -->
 <!-- Currently glc_grid is not being read from anywhere, so these rules are broken.  -->