Ignore errors preparing user storage for existing users am: e667b604 am:...

Ignore errors preparing user storage for existing users am: e667b604 am: 1dd78739 am: 9d405365

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17416119



Change-Id: I0462e745760b9a04c72504ce145022761234d3e1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>