Fix build error while creating CHD image

While building CHD image, it failed with the error

KeyError: 'system_dlkm_base_fs_file'

Fix the build error by deleting proper props in the python code.

Bug: 359578756
Test: Building CHD image using build_cf_hybrid_device.py should not failed
Change-Id: Iae84ff080b8f6bf3b8d22b26865ea3e74815ac37

tools/releasetools/common.py

@@ -933,7 +933,7 @@ def LoadInfoDict(input_file, repacking=False):
       else:
         logger.warning(
             "Failed to find %s fro %s", filename, prop)
-        del d[key_name]
+        del d[prop]
 
     # Redirect erofs_[default_]compress_hints files
     redirect_file("erofs_default_compress_hints",