Data model operation translations updated for smart field. Not equal
text change to the not equal symbol.

Change-Id: I617f6a1efa9d7fef8f8280a6751715a347f7dca3
Reviewed-on: https://git.eclipse.org/r/35388
Tested-by: Hudson CI
Reviewed-by: Andreas Hoegger <Andreas.Hoegger@bsiag.com>