[k6] Fix incorrect results when errors occur in k6 tests (case 2)

De-registration is reported as 200,000 handles per second if all operations fail
- Added a running total for successful de-registrations of CM Handles

Issue-ID: CPS-2346

Change-Id: Ib4302d3b605ff1eaf4ecadac11b4e851a69210df
Signed-off-by: egernug <gerard.nugent@est.tech>
1 file changed