layerindex: Update tinfoil to call shutdown method

The new client/server API of tinfoil requires explicit call of
shutdown method to send the event for finalize cooker process.

Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>

layerindex/bulkchange.py

@@ -231,6 +231,7 @@ def main():
 
         outp = generate_patches(tinfoil, fetchdir, changeset, sys.argv[2])
     finally:
+        tinfoil.shutdown()
         utils.unlock_file(lockfile)
 
     if outp:

layerindex/recipedesc.py

@@ -89,6 +89,7 @@ def main():
             except Exception as e:
                 logger.info("Unable to read %s: %s", fullpath, str(e))
 
+    tinfoil.shutdown()
     sys.exit(0)
 
 

layerindex/tools/import_classic.py

@@ -203,6 +203,7 @@ def main():
         transaction.rollback()
     finally:
         transaction.leave_transaction_management()
+        tinfoil.shutdown()
 
     shutil.rmtree(tempdir)
     sys.exit(0)