[dtest] Fix hipMemset2D test (#1579)
[dtest] Fix hipMemset2D test (#1579)

Reverts changes made in #1399. This is a RT api test. For testing hipMemAllocPitch , a new test should be written and that should use correct memset API.
ROCm-Developer-Tools/HIP,GPUOpen-ProfessionalCompute-Tools/HIP,ROCm-Developer-Tools/HIP,GPUOpen-ProfessionalCompute-Tools/HIP,GPUOpen-ProfessionalCompute-Tools/HIP,ROCm-Developer-Tools/HIP,ROCm-Developer-Tools/HIP,ROCm-Developer-Tools/HIP,GPUOpen-ProfessionalCompute-Tools/HIP,GPUOpen-ProfessionalCompute-Tools/HIP