[automerger skipped] storageproxyd: Retry RPMB request on UNIT ATTENTION am: ab2257e -s ours

am skip reason: Merged-In Ib970e779365bb396756c114684c7f6e56a737ab1 with SHA-1 d1a212e is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/15983377

Change-Id: I665ffb3d37b5fa4c1eeb61b5ddf249f2c754f27a

Author: Stephen Crane