build: Rework patch mechanism for Fuel submodules

While refactoring the patching mechanism, take care of:
- Sync submodule handling with Fuel@OPFNV;
- build: Investigate/prepare for moving patches to Fuel@OPNFV;
- build: Investigate divergent fuel-mirror;
- ISO build: cacheid for Fuel comps should not depend on
  Armband git commit;

CHANGE:
 Rename/shuffle patches while grouping them in "features",
 preparing for upstreaming them to Fuel@OPNFV and beyond.

CHANGE:
 Allow linking patches for better representing the dependency
 between one patch and different features.
 e.g. 0001-Add-arch-to-nailgun-release-and-target-image.patch:
   - part of `multiarch-fuel`, because it extends Fuel;
   - part of `direct-kernel-boot`, as arch is required for that;
   - part of `cross-bootstrap`, target image is arch-dependent;
 NOTE: Patch links are not staged to Fuel@OPNFV, they only serve
 as markers that a specific patch is part of a feature.

CHANGE:
 Kill all Fuel component submodules, now handled in Fuel@OPNFV:
  - fuel-agent
  - fuel-astute
  - fuel-library
  - fuel-mirror
  - fuel-nailgun-agent
  - fuel-web

CHANGE:
 Move armband-fuel-config.mk to armband git root.

FIXME: m1.micro-Increase-profile-RAM-size-to-128MB.patch is NOT
 part of `cross-bootstrap` feature, but patch context says so ...

FIXME: 0001-Add-arm64-deb-repositories-setup.patch is broken at
 `make patches-export` by removing spaces at EOL.

v2 -> v3:
 * Phony patch support (links to show a patch belongs to a feature);
 * Updated README.md
v3 -> v7:
 * Re-export Fuel submodules & plugins patches (update patch context);
 * Update Cavium mail addresses (s/caviumnetworks.com/cavium.com/);
 * Ignore submodule changes;
 * Add armband git repo info to gitinfo_fuel.txt at build time;

Implements: ARMBAND-136
Closes-bug: ARMBAND-95
Closes-bug: ARMBAND-93
Closes-bug: ARMBAND-92

Change-Id: I1a236d9f43b2e6dca22055911f696b43c22b5973
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/patches/fuel-library/arm64-bug-fixes/0002-Install-vgabios-and-link-for-aarch64.patch b/patches/fuel-library/arm64-bug-fixes/0002-Install-vgabios-and-link-for-aarch64.patch
new file mode 100644
index 00000000..da152ead
--- /dev/null
+++ b/patches/fuel-library/arm64-bug-fixes/0002-Install-vgabios-and-link-for-aarch64.patch
@@ -0,0 +1,33 @@
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Tue, 15 Mar 2016 11:33:52 +0100
+Subject: [PATCH] Install vgabios (and link) for aarch64
+
+vgabios is needed for standard VGA mode in AArch64 VMs, so
+install it by default on AArch64 and create missing link
+in </usr/share/qemu> to </usr/share/vgabios/vgabios.bin>.
+
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Signed-off-by: Stanislaw Kardach <stanislaw.kardach@cavium.com>
+---
+ deployment/puppet/openstack_tasks/manifests/roles/compute.pp | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/deployment/puppet/openstack_tasks/manifests/roles/compute.pp b/deployment/puppet/openstack_tasks/manifests/roles/compute.pp
+index 4240126..b18fa7b 100644
+--- a/deployment/puppet/openstack_tasks/manifests/roles/compute.pp
++++ b/deployment/puppet/openstack_tasks/manifests/roles/compute.pp
+@@ -409,6 +409,14 @@ class openstack_tasks::roles::compute {
+     vncserver_listen                           => '0.0.0.0',
+     remove_unused_original_minimum_age_seconds => pick($nova_hash_real['remove_unused_original_minimum_age_seconds'], '86400'),
+     libvirt_service_name                       => $::nova::params::libvirt_service_name,
++  } ->
++  package { 'vgabios':
++    ensure => present;
++  } ->
++  file { '/usr/share/qemu/vgabios-stdvga.bin':
++    ensure  => link,
++    target  => '/usr/share/vgabios/vgabios.bin',
++    replace => false,
+   }
+
+   class { '::nova::migration::libvirt':