Merge "Add aconfig flags for rust keystore2" into main am: 2ff4165d26

Original change: https://android-review.googlesource.com/c/platform/system/security/+/2763287

Change-Id: I64d10a4157680f0fa4ef8e3e4eec094a44d4da7a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>