Merge "aconfig: move `cache_` as a memeber" into main am: 8a64367c am: 90f1cbbe

Original change: https://android-review.googlesource.com/c/platform/build/+/2835795



Change-Id: I84132a7f247910609241bfdcdc218e9a01dae7b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>