Add rbd support to EdgeOS.

BUG=b/149273109
TEST=sponge2/fe538aa7-163d-439d-b4a6-273363619335
RELEASE_NOTE=Added rbd support to EdgeOS.

Change-Id: I9b64e581ed9c26908d0eacee6f80efe248c30896
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/22331
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Roy Yang <royyang@google.com>
3 files changed