[Buildroot] Patch series

[Norbert Lange]

As is was suggested I pulled my patches in a series,
this should combine most of my open work.

It does *not* contain:

-   toolchain: support mismatched merged usr [1]
    recent enough

-   package/dbus-broker: new package [2]
    recent enough

-   package/openssh: improve integration for systemd [3]
    outdated, no time to fix it


Patch 1 and 2 set the runstatedir for CMake and Autotools (new patches)

Patch 3 and 4 are rebased and adopted to feedback.

Patch 5 contains a better commit message

Patch 6 and 7 are new


[PATCH v3 1/7] package/pkg-cmake.mk: use /run as runtime path
[PATCH v3 2/7] pkg-autotools: optimistically set runstatedir
[PATCH v3 3/7] package/systemd: use current tool for generating HWDB
[PATCH v3 4/7] package/systemd: remove hwdb-update service
[PATCH v3 5/7] Makefile: remove /usr/lib/rpm directory on target
[PATCH v3 6/7] package/zsh: Enable dynamic modules
[PATCH v3 7/7] package/zsh: enable static regex module

[1] - https://lists.buildroot.org/pipermail/buildroot/2022-February/637079.html
[2] - https://patchwork.ozlabs.org/project/buildroot/patch/20220109221650.777610-1-nolange79@gmail.com/
[3] - https://patchwork.ozlabs.org/project/buildroot/patch/20200611091407.12688-2-nolange79@gmail.com/