UBUNTU: [Config] s390x -- add initial binary image

Signed-off-by: Andy Whitcroft <apw@canonical.com>

debian.master/etc/kernelconfig

@@ -2,6 +2,6 @@ if [ "$variant" = "ports" ]; then
 	archs=""
 	family='ports'
 else
-	archs="amd64 i386 armhf arm64 ppc64el powerpc"
+	archs="amd64 i386 armhf arm64 ppc64el powerpc s390x"
 	family='ubuntu'
 fi

debian.master/rules.d/s390x.mk

@@ -3,6 +3,12 @@ build_arch      = s390
 header_arch     = $(build_arch)
 defconfig       = defconfig
 flavours        = generic
+build_image	= image
+kernel_file	= arch/$(build_arch)/boot/image
+install_file	= vmlinuz
 
-do_flavour_image_package = false
+vdso		= vdso_install
+no_dumpfile	= true
+
+do_extras_package = true
 do_zfs		= true