[sig-compute]SwapTest Migration to/from memory overcommitted nodes Postcopy Migration of vmi that is dirtying(stress-ng) more memory than the source node's memory

[sig-compute]SwapTest Migration to/from memory overcommitted nodes Migration of vmi to memory overcommited node

We quarantined above two T1 test cases so far, need devops team help to enable swap for running Virt T1 tests

We have two options how to approach it:
1) have a parameter in the test job to enable it similar to HugePages
2) Enable it for all lanes by default (4.20+)