Added test scenarios for hipExtLaunchKernelGGL
1. verify kernel execution time using events
passed through argument
2. Verify the API by disabling time flag in
event creation.
SWDEV-238517 for enhancing hip unit tests
Change-Id: I755adc34a25c58b68041fc927bbffd2a9e6eafde
[ROCm/hip commit: d1c921ffca]
DURGESH KROTTAPALLI