[RESTRICT AUTOMERGE] UserDataPreparer: reboot to recovery if preparing user storage fails am: ea010f3dd2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17416379

Change-Id: Ie98301125accca1074aa5f7e4ea4f51cfdbd8cd7
Ignore-AOSP-First: this is an automerge
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>