m8: use device-specific sepolicies

Change-Id: Ia46b46e9b0fb7968144b2a6fa852f256cfaea3a4
m8: enable extended font support

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

Change-Id: I7a27a721ba36487ef393fb7927bd526022a7653f
Revert "Disable too long props"

This reverts commit 68d2be39f7f8c1ddc65d23d8bb062c51370c3171.

Change-Id: Ic6ce1df92c64a72883164c705f8e62745cae3e3a
m8: remove useless, broken props

* these are too long, and cwm is dead anyway

Change-Id: Ida301b7173266cdc9b28eaf28ad260f9f6ee09c1