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, 0 insertions, 66 deletions

diff --git a/patches/fuel-agent/0007-Add-fs-for-efi-partition.patch b/patches/fuel-agent/0007-Add-fs-for-efi-partition.patch
deleted file mode 100644
index 0fb94215..00000000
--- a/patches/fuel-agent/0007-Add-fs-for-efi-partition.patch
+++ /dev/null
@@ -1,66 +0,0 @@
-From: Stanislaw Kardach <stanislaw.kardach@caviumnetworks.com>
-Date: Tue, 8 Mar 2016 21:08:55 +0100
-Subject: [PATCH] Add fs for efi partition
-
----
- debian/control                |  1 +
- fuel_agent/drivers/nailgun.py | 13 ++++++++++---
- specs/fuel-agent.spec         |  1 +
- 3 files changed, 12 insertions(+), 3 deletions(-)
-
-diff --git a/debian/control b/debian/control
-index 189dc00..acfda35 100644
---- a/debian/control
-+++ b/debian/control
-@@ -39,6 +39,7 @@ Depends: bzip2,
- 	 qemu-user-static,
- 	 binfmt-support,
- 	 dmidecode,
-+	 dosfstools,
- 	 ethtool,
- 	 gdisk,
- 	 genisoimage,
-diff --git a/fuel_agent/drivers/nailgun.py b/fuel_agent/drivers/nailgun.py
-index bc532b4..f092865 100644
---- a/fuel_agent/drivers/nailgun.py
-+++ b/fuel_agent/drivers/nailgun.py
-@@ -81,6 +81,9 @@ class Nailgun(BaseDataDriver):
-         # was already allocated on first matching volume
-         # or not
-         self._boot_partition_done = False
-+        # this var states whether ESP partition was already
-+        # allocated on the first matching volume or not
-+        self._esp_partition_done = False
-         # this var is used as a flag that /boot fs
-         # has already been added. we need this to
-         # get rid of md over all disks for /boot partition.
-@@ -321,10 +324,14 @@ class Nailgun(BaseDataDriver):
-             LOG.debug('Adding bios_grub partition on disk %s: size=24' %
-                       disk['name'])
-             parted.add_partition(size=24, flags=['bios_grub'])
--            # uefi partition (for future use)
--            LOG.debug('Adding UEFI partition on disk %s: size=200' %
-+            # uefi partition - added only once.
-+            if self._is_boot_disk(disk) and not self._esp_partition_done:
-+                LOG.debug('Adding UEFI partition on disk %s: size=200' %
-                       disk['name'])
--            parted.add_partition(size=200, flags=['esp'])
-+                prt = parted.add_partition(size=200, flags=['esp'])
-+                partition_scheme.add_fs(device=prt.name, mount='/boot/efi',
-+                                        fs_type='vfat')
-+                self._esp_partition_done = True
- 
-             LOG.debug('Looping over all volumes on disk %s' % disk['name'])
-             for volume in disk['volumes']:
-diff --git a/specs/fuel-agent.spec b/specs/fuel-agent.spec
-index a43f693..c2b9b51 100644
---- a/specs/fuel-agent.spec
-+++ b/specs/fuel-agent.spec
-@@ -50,6 +50,7 @@ Requires:    xfsprogs
- Requires:    pciutils
- Requires:    ethtool
- Requires:    debootstrap
-+Requires:    dosfstools
- Requires:    dpkg
- Requires:    qemu-user-static
- Requires:    xz