Use "root" aconfig module in all release configs Remove the redundant copies of the aconfig flags from next and trunk_food. Ignore ap2a to reduce merge conflicts. Bug: b/328495189 Test: croot build/tools/aconfig && atest --host Ignore-AOSP-First: will manually push this Change-Id: I88cb8047045b9563f3b72c3b146aeb70a6b1a323