Add Layover/shadow mask in InSAR workflow

Author: jungkyoJung

python/packages/pybind_nisar/workflows/geocode_insar.py

@@ -100,6 +100,7 @@ def run(cfg, runw_hdf5, output_hdf5):
                         input_raster = isce3.io.Raster(str(raster_ref))
 
                         # access the HDF5 dataset for layover shadow mask
+                        dataset_path = f"{dst_freq_path}/{dataset_name}"
                         geo.data_interpolator = 'NEAREST'
                         radar_grid = radar_grid_slc
                     else:  
@@ -112,8 +113,8 @@ def run(cfg, runw_hdf5, output_hdf5):
                         # access the HDF5 dataset for a given frequency and pol
                         geo.data_interpolator = interp_method
                         radar_grid = radar_grid_multilook
+                        dataset_path = f"{dst_group_path}/{dataset_name}"
 
-                    dataset_path = f"{dst_group_path}/{dataset_name}"
                     geocoded_dataset = dst_h5[dataset_path]
 
                     # Construct the output ratster directly from HDF5 dataset