Merge "aconfig: cpp codegen update: Move server_configurable_flags header...

Merge "aconfig: cpp codegen update: Move server_configurable_flags header include" into main am: db2c2d23

Original change: https://android-review.googlesource.com/c/platform/build/+/2652484



Change-Id: Ib20b5a4a142c650e3c39f51d688e72d8294aaff3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>