Add new Makefile target to build a deb and rpm package

The package would put all files into /lib/firmware/updates to avoid
conflicting with distro packages.

The package is also intentionally named to avoid conflicts with
distro packages.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>

contrib/templates/debian.changelog

@@ -0,0 +1,5 @@
+{{package}} ({{version}}) unstable; urgency=medium
+
+  * Automated release
+
+ -- Linux Firmware <linux-firmware@kernel.org>  {{ date }}

contrib/templates/debian.control

@@ -0,0 +1,18 @@
+Source: {{package}}
+Section: unknown
+Priority: optional
+Maintainer: Linux Firmware <linux-firmware@kernel.org>
+Build-Depends: debhelper-compat (= 13)
+Standards-Version: 4.6.0
+Homepage: https://gitlab.com/kernel-firmware/linux-firmware
+Vcs-Browser: https://gitlab.com/kernel-firmware/linux-firmware
+Vcs-Git: https://gitlab.com/kernel-firmware/linux-firmware
+Rules-Requires-Root: no
+
+Package: {{package}}
+Architecture: all
+Depends: ${misc:Depends}
+Description: Upstream snapshot of linux-firmware package
+ Monolithic snapshot of upstream linux-firmware package, intended to
+ to validate upstream firmware without conflicts to the distribution
+ package.

contrib/templates/debian.copyright

@@ -0,0 +1,28 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: {{ package }}
+Upstream-Contact: linux-firmware@kernel.org
+Source: https://gitlab.com/kernel-firmware/linux-firmware
+
+Files: *
+Copyright: Various
+License: Various
+ License for all firmware is described in /usr/share/doc/{{ package }}/WHENCE.gz
+
+Files: debian/*
+Copyright: 2023 Linux Firmware <firmware@kernel.org>
+License: GPL-2+
+ This package is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+ .
+ This package is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ .
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>
+ .
+ On Debian systems, the complete text of the GNU General
+ Public License version 2 can be found in "/usr/share/common-licenses/GPL-2".

contrib/templates/rpm.spec

@@ -0,0 +1,31 @@
+Name:           {{ package }}
+Version:        {{ version }}
+Release:        1%{?dist}
+Summary:        Linux Firmware (upstream)
+License:        Redistributable, no modification permitted
+URL:            http://gitlab.com/kernel-firmware/linux-firmware
+Source:         /dev/null
+BuildArch:      noarch
+
+%description
+Monolithic snapshot of upstream linux-firmware package, intended to
+to validate upstream firmware without conflicts to the distribution
+package.
+
+%prep
+%setup -q
+
+%build
+
+%install
+%define __strip /bin/true
+rm -rf %{buildroot}
+mkdir -p %{buildroot}/lib/firmware
+cp -aR {{ cwd }}/updates %{buildroot}/lib/firmware
+
+%files
+%defattr(-,root,root,-)
+/lib/firmware/updates/*
+
+%post
+dracut -fp --regenerate-all