Fixes typo when calling process_dynamic_partitions_info_txt.

Test: Running merge_target_files.py
Change-Id: Ieddfbfe524824844fc12cc10347f667332149f7c
diff --git a/tools/releasetools/merge_target_files.py b/tools/releasetools/merge_target_files.py
index 20a9c64..f03cc1e 100755
--- a/tools/releasetools/merge_target_files.py
+++ b/tools/releasetools/merge_target_files.py
@@ -584,9 +584,9 @@
       system_misc_info_keys=system_misc_info_keys)
 
   process_dynamic_partitions_info_txt(
-      system_target_files_temp_dir=system_target_files_temp_dir,
-      other_target_files_temp_dir=other_target_files_temp_dir,
-      output_target_files_temp_dir=output_target_files_temp_dir)
+      system_target_files_dir=system_target_files_temp_dir,
+      other_target_files_dir=other_target_files_temp_dir,
+      output_target_files_dir=output_target_files_temp_dir)
 
 
 def merge_target_files(temp_dir, system_target_files, system_item_list,