Merge "Addressing error-code propagation for remount service." am: cab12f8a...

Merge "Addressing error-code propagation for remount service." am: cab12f8a am: e06454fb am: a4ad2671 am: 79e2042f

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1877917

Change-Id: I8e10934748bc429247680e323444d567a35a6536