plugins/ocp: Update telemetry string log page (C9h)

Take care the below failures for "telemetry-string-log".

Resolved the json printing issue.

Changed the Statistic Identifier, Event String, Vendor Unique, ASCII
table offset and size calculation.

Reviewed-by: Karthik Balan <[email protected]>
Reviewed-by: Arunpandian J <[email protected]>
Reviewed-by: Jayakanthan Rajendran <[email protected]>
Signed-off-by: Vigneshwaran Saravanan <[email protected]>