Merge "Create /metadata/staged-install dir to store staged install failure...

Merge "Create /metadata/staged-install dir to store staged install failure reasons" into rvc-dev am: 000226f1 am: 07bc6980 am: 5e55521b

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/11408963

Change-Id: I1987a206e88c1326794529874c02ebb37b6c174a