Merge "storageproxy: Report fsync failures with a distinct error code" am:...

Merge "storageproxy: Report fsync failures with a distinct error code" am: 67d70ffe am: f06b221c am: ff736d8d

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2169947



Change-Id: I7a49273b42adb104e3014773d8fbf4320562edaa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>