Updates merge_target_files soong_zip to use -r instead of -l.

This is needed due to output artifacts in the zip that confuse globbing,
such as [.

(Also changes this call to RunAndCheckOutput, which prints the stderror
by default instead of RunAndWait which does not. Removes RunAndWait
which is now unused)

Bug: 179799226
Test: Run merge_target_files to merge two partial builds
Change-Id: Ibf8a5b0c013c9cd8b1e61195d97583f247d97c6f
diff --git a/tools/releasetools/merge_target_files.py b/tools/releasetools/merge_target_files.py
index 9360d7b..3d9c717 100755
--- a/tools/releasetools/merge_target_files.py
+++ b/tools/releasetools/merge_target_files.py
@@ -887,12 +887,12 @@
       output_zip,
       '-C',
       source_dir,
-      '-l',
+      '-r',
       output_target_files_list,
   ]
 
   logger.info('creating %s', output_file)
-  common.RunAndWait(command, verbose=True)
+  common.RunAndCheckOutput(command, verbose=True)
   logger.info('finished creating %s', output_file)
 
   return output_zip