dbus-sensors: nvmesensor: refactor createVolume and createNamespace Refactor createVolume and createNamespace implementation to avoid sd-bus assertion. Tested: b/309864477#comment8 Google-Bug-Id: 309864477 Google-Bug-Id: 308007717 Change-Id: I9a7b8f74801f030b0b3785e74ab1a625a70e3fa3 Signed-off-by: Jinliang Wang <jinliangw@google.com> (cherry picked from commit 33715b21f07b436f5d0965dc5585a0d66e6c3b64)