Rename data_processing client

The client module name of data_processing was just 'client', but
the other service clients contain their service names.
So the one of data_processing was different and inconsistent.
This patch renames the module name to data_processing_client.

Change-Id: Iefd04a5e22ea3943ef368fb8d27a0a4a28a75f8b
2 files changed