Fix a build error on signed/unsigned comparison
Fix a build error on signed/unsigned comparison

Change-Id: Ic79eb4c3ec5c6fd36cea7c4810d990619f08b9e1

ROCm-Developer-Tools/HIP,ROCm-Developer-Tools/HIP,ROCm-Developer-Tools/HIP,ROCm-Developer-Tools/HIP,ROCm-Developer-Tools/HIP