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, 48 insertions, 0 deletions

diff --git a/patches/opnfv-fuel/cross-bootstrap/0003-bootstrap-Use-public-Ubuntu-ports-mirrors.patch b/patches/opnfv-fuel/cross-bootstrap/0003-bootstrap-Use-public-Ubuntu-ports-mirrors.patch
new file mode 100644
index 00000000..157306b2
--- /dev/null
+++ b/patches/opnfv-fuel/cross-bootstrap/0003-bootstrap-Use-public-Ubuntu-ports-mirrors.patch
@@ -0,0 +1,48 @@
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Thu, 3 Mar 2016 19:18:27 +0100
+Subject: [PATCH] bootstrap: Use public Ubuntu-ports mirrors.
+
+Instead of relying on 127.0.0.1 partial Ubuntu mirror, use
+public archives.
+While doing so, switch to Ubuntu-ports, enabling  building arm64
+bootstraps.
+
+NOTE: This disables the abillity to build amd64 bootstraps with
+current config.
+---
+ build/f_isoroot/f_repobuild/fuel_bootstrap_cli.yaml | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/build/f_isoroot/f_repobuild/fuel_bootstrap_cli.yaml b/build/f_isoroot/f_repobuild/fuel_bootstrap_cli.yaml
+index 264ae0e..17e161f 100644
+--- a/build/f_isoroot/f_repobuild/fuel_bootstrap_cli.yaml
++++ b/build/f_isoroot/f_repobuild/fuel_bootstrap_cli.yaml
+@@ -49,19 +49,19 @@
+   repos:
+     - name: ubuntu
+       section: "main universe multiverse"
+-      uri: "http://127.0.0.1:8080/mirrors/ubuntu"
++      uri: "http://ports.ubuntu.com/ubuntu-ports"
+       priority:
+       suite: trusty
+       type: deb
+     - name: ubuntu-updates
+       section: "main universe multiverse"
+-      uri: "http://127.0.0.1:8080/mirrors/ubuntu"
++      uri: "http://ports.ubuntu.com/ubuntu-ports"
+       priority:
+       suite: trusty-updates
+       type: deb
+     - name: ubuntu-security
+       section: "main universe multiverse"
+-      uri: "http://127.0.0.1:8080/mirrors/ubuntu"
++      uri: "http://ports.ubuntu.com/ubuntu-ports"
+       priority:
+       suite: trusty-security
+       type: deb
+@@ -73,4 +73,5 @@
+       type: deb
+   skip_default_img_build: false
+   direct_repo_addresses:
++    - "ports.ubuntu.com"
+     - "127.0.0.1"