Merge branch 'jonbob/seaice/fix-bgc-column-physics-type' (PR #6036)

Make "column_package" the default column_physics_type for BGC

With icepack now the default seaice column physics package, we need to
make "column_package" the default when seaice BGC is on until it's
completely supported in icepack.

[non-BFB] only for BGC configurations with active seaice (which are
          currently broken)

components/mpas-seaice/bld/build-namelist

@@ -629,7 +629,11 @@ add_default($nl, 'config_recover_tracer_means_check');
 # Namelist group: column_package #
 ##################################
 
-add_default($nl, 'config_column_physics_type');
+if ($ice_bgc eq 'ice_bgc') {
+        add_default($nl, 'config_column_physics_type', 'val'=>"column_package");
+} else {
+        add_default($nl, 'config_column_physics_type');
+}
 add_default($nl, 'config_use_column_shortwave');
 add_default($nl, 'config_use_column_vertical_thermodynamics');
 if ($ice_bgc eq 'ice_bgc') {