AArch64: Ubuntu local partial mirror: Add arm64

AArch64: Ubuntu local partial mirror: Add arm64

NOTE: Temporarily patch "packetary" in Armband until we upstream
      two small fixes.

Bootstrap build, deploy target image build:
- Switch from public Ubuntu mirrors to 10.20.0.2.

Squash master fixes:
- f_repobuild: Fixup missing OPNFV plugin deps
  Packetary solves "libasound2" with "liboss4-salsa-asound2" from
  universe, leading to openjdk failing to install.

  Work around this by altering recently introduced packetary-driven
  local mirror build to include OPNFV plugin deps into "main" comp.
- local mirror: Add missing vgabios for arm64

JIRA: ARMBAND-35
JIRA: ARMBAND-169

Conflicts:
	.gitmodules
	armband-fuel-config.mk
	patches/opnfv-fuel/0022-bootstrap-Use-public-Ubuntu-ports-mirrors.patch
	patches/opnfv-fuel/0043-build-Add-armband.mk-config.patch

Change-Id: I14645cfeebb486063e7b8198de273f68285b11cd
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>