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

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

Change-Id: I7c61136b0fc6f2c8992672c6cdd179de9f0ba639
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>