m8: enable extended font support

Change-Id: Icfdec0da669c93bd243032ab2ee514a813c50b35
props: update widevine blobs from hammerhead-lrx21o-factory-01315e08

Change-Id: I7a27a721ba36487ef393fb7927bd526022a7653f
Enable support for multiple users

Change-Id: I54a2794100f79e64ca9eefc94f89229060242f96
m8: set selinux permissive, remove local policies

Change-Id: I20df3cdde8dc0b2ae9b8cee01fb30ded7b5fd6f3
Reenable hardware key overlay
Ambient Display

This enables Ambient Display to appears on Settings

Change-Id: Icd21b7060a30aa1de419758faf95a12b745667aa