StorageManagerService: don't ignore failures to prepare user storage We must never leave directories unencrypted. Bug: 164488924 Bug: 224585613 Change-Id: I9a38ab5cca1ae9c9ebff81fca04615fd83ebe4b2 (cherry picked from commit 50946dd15fd14cbf92b5c7e32ac7a0f088b8b302) Merged-In: I9a38ab5cca1ae9c9ebff81fca04615fd83ebe4b2 (cherry picked from commit 567e7a0476a3251d02705932268cd5f395ef863f) Merged-In: I9a38ab5cca1ae9c9ebff81fca04615fd83ebe4b2