[Differential] [Updated] D2378: Introduce ITS support for ARM64

[zbb (Zbigniew Bodek)]

zbb added a dependency: D2701: Add options to dmb() and dsb() macros.

REPOSITORY
  rS FreeBSD src repository

REVISION DETAIL
  https://reviews.freebsd.org/D2378

EMAIL PREFERENCES
  https://reviews.freebsd.org/settings/panel/emailpreferences/

To: zbb, imp, ian, andrew, emaste, brueffer, joel, wblock
Cc: gnn, kib, emaste, andrew, imp, freebsd-arm