Merge "aconfig: c++ read api to return an android::base::Result and cargo fmt"...

Merge "aconfig: c++ read api to return an android::base::Result and cargo fmt" into main am: 6c63da3c

Original change: https://android-review.googlesource.com/c/platform/build/+/3001062



Change-Id: I6b28106dc5dea36bdf85ebc7ac1e2bd47d5dbea9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>