kubernetes: introduce devupstream variant
kubernetes: introduce devupstream variant

Introduce a devupstream variant of k8s, so we can track development
while also packaging the latest released versions.

We set the SRECREV to 1.23.x as it was previously, and before the
go version dependency bumps to above where OE core is currently
providing.

We move the patches to a :append, so they can apply to both the
released and devupstream versions.

Signed-off-by: Bruce Ashfield <284cc737d174a260eec2a2a6324a304f84b1ae0f@gmail.com>

lgirdk/meta-virtualization,lgirdk/meta-virtualization,lgirdk/meta-virtualization,lgirdk/meta-virtualization,lgirdk/meta-virtualization