DeepSpeed

4b6d7c15 - Disable Stage 1&2 CPUAdam pathways (#3097)

Disable Stage 1&2 CPUAdam pathways (#3097) * disable CPUAdam pathways in optimizer copy/step * Update stage_1_and_2.py --------- Co-authored-by: Olatunji Ruwase <olruwase@microsoft.com>