Tightens Accessibility Settings owners.

Per discussion with leads, we'd like to ensure that Settings > Accessibility changes are seen
and approved by the Android Accessibility team. This change prevents default Settings owners
from accidentally approving changes without looping in a11y, while ensuring Settings lead cipson
has approval for emergency changes.

Change-Id: I914067a4d2616c212309b70fb29679f9acfa7643
1 file changed