[Coverity CID :187904] Integer handling issues in /tests/benchmarks/timing_info/src/semaphore_bench.c

[mandarcthorat1]

Static code scan issues seen in File: /tests/benchmarks/timing_info/src/semaphore_bench.c
Category: Integer handling issues
Function: mutex_bench
Component: Tests
CID: 187904
Please fix or provide comments to square it off in coverity in the link: https://scan9.coverity.com/reports.htm#v32951/p12996

[AdithyaBaglody]

False positive. Divide by zero for the faulting expression is never possible. Updated the same in coverity.