Tensorboard step on resume training restarts from 0
**Describe the bug**

I have noticed that in previous nemo versions, e.g. 83444044327d8f0b697bbf0729bd96b7e16e3a56, Tensorboard showed consecutive steps when training was continued from the last checkpoint of an interrupted run; recent versions e.g. 77be76349901d0dd99ad6778509ef5c0663a65c3, as well as 1.10.0 do not; they always start from 0. Is this by intention or bug?

with 83444044327d8f0b697bbf0729bd96b7e16e3a56
<img width="365" alt="image" src="https://user-images.githubusercontent.com/4784070/178539639-a0e1cd2a-daf0-4460-96d1-20524bf4c969.png">

with 77be76349901d0dd99ad6778509ef5c0663a65c3
<img width="365" alt="image" src="https://user-images.githubusercontent.com/4784070/178539957-30a5d0cf-064d-4cbb-b850-e0b9d91aa4a9.png">
