Move the creation of the staging directory to odrefresh. am: c62d3a210b am: 5299bb287a

Original change: https://android-review.googlesource.com/c/platform/art/+/2979531

Change-Id: I74904c05c6b9cb9b09bca549b1a8972cf377783f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>