UBUNTU: Added Snapcraft files

Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

debian/snapcraft.mk

+ifeq ($(ARCH),)
+  arch := $(shell uname -m | sed -e s/i.86/i386/ -e s/x86_64/amd64/ \
+            -e s/arm.*/armhf/ -e s/s390/s390x/ -e s/ppc.*/powerpc/ \
+            -e s/aarch64.*/arm64/ )
+else ifeq ($(ARCH),arm)
+  arch := armhf
+else
+  arch := $(ARCH)
+endif
+config:
+	cat debian.$(branch)/config/config.common.ubuntu debian.$(branch)/config/$(arch)/config.common.$(arch) debian.$(branch)/config/$(arch)/config.flavour.$(flavour) >.config

snapcraft.yaml

+name: ubuntu-generic-kernel
+version: 4.4.0
+summary: The generic kernel for snappy
+description: This is a generic snapped kernel, based off the xenial src and config
+type: kernel
+
+parts:
+  kernel:
+    plugin: kernel
+    source: .
+    source-branch: master
+    source-type: git
+    kdefconfig: ['--makefile=debian/snapcraft.mk', 'branch=master','flavour=generic', 'config']
+    kconfigs:
+      - CONFIG_LOCALVERSION="-xenial_generic"
+      - CONFIG_DEBUG_INFO=n
+    kernel-initrd-modules:
+      - squashfs
+    kernel-initrd-firmware:
+      - lib/firmware/e100/d101m_ucode.bin
+      - lib/firmware/e100/d101s_ucode.bin
+      - lib/firmware/e100/d102e_ucode.bin
+    kernel-image-target: bzImage