Merge "aconfig_storage: move storage files to <partition>/etc/aconfig dir" into main am: 1eb16c12

Original change: https://android-review.googlesource.com/c/platform/build/+/2982351



Change-Id: I54cdff0c3d062de39dd4e4754af201167dbefba8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>