COMPMID-663: Fixed JSON writer for raw_data

Quotes were missing around the JSON strings

Change-Id: I3257721f76215a5c900428c453a843090d12a596
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/95314
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
1 file changed