COMPMID-417: Fix DepthConcatenate validation fixture

Change-Id: I4d15b4f31ed571e275a47e254c9df9ba9c95eb82
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/87316
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
3 files changed