This reverts commit 6e1b274f03.
A system partition cannot have the aconfigs of other partitions.
Revive the system_ext container for system_ext aconfigs.
Bug: 385213580
Test: "adb shell aflags list" must not be changed.
Flag: EXEMPT refactor
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:1337a88d112b005f897b3745b5475cf7d4764db7)
Merged-In: I8f52d5f86e6ffaccd624846fbe1ba0a8fc842af6
Change-Id: I8f52d5f86e6ffaccd624846fbe1ba0a8fc842af6
Aconfig flag to control adding the group name to the channel name in the
DND App Settings page, to disambiguate channels that have identical
names in the list.
Test: adding flag; builds
Bug: 294333850
Change-Id: Icac50932e75b011b25b507b38433620c09680f3c