kernel: build: Add container build

Add script to build kernel in a container.

Signed-off-by: Carlos Venegas <jos.c.venegas.munoz@intel.com>

tools/packaging/static-build/kernel/Dockerfile

@@ -0,0 +1,18 @@
+# Copyright (c) 2021 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+FROM ubuntu
+ENV DEBIAN_FRONTEND=noninteractive
+
+# kernel deps
+RUN apt update
+RUN apt install -y \
+	    bc \
+	    bison \
+	    build-essential \
+	    curl \
+	    flex \
+	    git \
+	    iptables \
+	    libelf-dev \