Fix rolebehavior ability to override role visible

Fix bug where if role was `visible="false"` in roles.xml, then
RoleBehavior was not able to enable it by overriding RoleBehavior.isVisibleAsUser()

Bug: 383126474
Flag: EXEMPT bugfix
Relnote: N/A
Test: atest RoleManagerTest
Test: atest RoleMultiUserTest
Test: atest RoleParserTest
Change-Id: Ib07ea13199641d4301f397452d4b03f173cf376f
11 files changed