Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Add jsafrane as AWS approver.
**What this PR does / why we need it**:
I contrinbuted several PRs in AWS storage and I'm willing to share review/approval duty.
**Release note**:
```release-note
NONE
```
/assign @justinsb