storage: add fastbootd sepolicy am: f55b2ffc2e

Original change: https://googleplex-android-review.googlesource.com/c/device/google/gs-common/+/22746605

Change-Id: Icbca760982856e6723f7231b1bf0292a3df2bb9e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>