Fix AxisInfo handling of PoisonOp producing MemDesc (#8489)#5501

wdziurdz wants to merge 2 commits intomainintel/intel-xpu-backend-for-triton:mainfrom

dev/wdziurdz/memdesc-1intel/intel-xpu-backend-for-triton:dev/wdziurdz/memdesc-1Copy head branch name to clipboard