Revert "Revert "ANDROID: Add module_generated_headers for GKI.""

9b714e1b

This packages flask.h and av_permissions.h and provide
them to external modules.

DISABLE_TOPIC_PROTECTOR=only this change is missing from rust branch.

Bug: 409881963
Bug: 420595602
Change-Id: I8f277d3e7dbe243af9a49378f2d38b8da0291b9e
Signed-off-by: HONG Yifan <elsk@google.com>
(cherry picked from commit a78b0fd9)