Fix very slow issues of two ocltst test cases. Cherry pick https://gerrit-git.amd.com/c/compute/ec/clr/+/1009383 Change-Id: I0228c5e87cdec366993fd4afb1c25e7f8161c2c5 [ROCm/clr commit: 4ec274c7d4]
4ec274c7d4