Merge "aconfig: move codegen into separate module" into main am: a18d7b17...

Merge "aconfig: move codegen into separate module" into main am: a18d7b17 am: 7c9c3c00 am: d2b84e50

Original change: https://android-review.googlesource.com/c/platform/build/+/2863041



Change-Id: Idef2c472d077c640b0979373f77f3a43087ff7e2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>