UserDataPreparer: reboot to recovery if preparing user storage fails am: e1f17026ca am: ad111e22f8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17416117

Change-Id: I1004f460c5d309007a1b771a6f771db298731be0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>