Update bld files to match Registry

Author: jonbob

components/mpas-seaice/bld/build-namelist

@@ -882,6 +882,7 @@ add_default($nl, 'config_rapid_mode_aspect_ratio');
 add_default($nl, 'config_slow_mode_drainage_strength');
 add_default($nl, 'config_slow_mode_critical_porosity');
 add_default($nl, 'config_macro_drainage_timescale');
+add_default($nl, 'config_congelation_freezing_method');
 add_default($nl, 'config_congelation_ice_porosity');
 
 #######################

components/mpas-seaice/bld/build-namelist-section

@@ -393,6 +393,7 @@ add_default($nl, 'config_rapid_mode_aspect_ratio');
 add_default($nl, 'config_slow_mode_drainage_strength');
 add_default($nl, 'config_slow_mode_critical_porosity');
 add_default($nl, 'config_macro_drainage_timescale');
+add_default($nl, 'config_congelation_freezing_method');
 add_default($nl, 'config_congelation_ice_porosity');
 
 #######################

components/mpas-seaice/bld/namelist_files/namelist_definition_mpassi.xml

@@ -2425,7 +2425,7 @@ Default: Defined in namelist_defaults.xml
 
 <entry id="config_congelation_freezing_method" type="char*1024"
 	category="thermodynamics" group="thermodynamics">
-Method used for congelation freezing.
+Method for congelation ice freezing.
 
 Valid values: 'one-step', 'two-step'
 Default: Defined in namelist_defaults.xml