kubernetes: build host tools using host toolchain
kubernetes: build host tools using host toolchain

Compile host tools such as deepcopy-gen, defaulter-gen, openapi-gen
   for host architecture, to solve below error:
-- snip --
| +++ [0117 05:31:35] Building go targets for linux/arm64:
|     ./vendor/k8s.io/code-generator/cmd/deepcopy-gen
| touch: cannot touch '_output/bin/deepcopy-gen': No such file or directory
| make[1]: *** [Makefile.generated_files:323: _output/bin/deepcopy-gen] Error 1
| make: *** [Makefile:478: generated_files] Error 2

Signed-off-by: Jagadeesh Krishnanjanappa <5a51f18efe73b4e7c26060f97674973df9c9f7ec@mvista.com>
Signed-off-by: Koen Kooi <d0a161424d033e19799f22c7b0d92266ac3a2161@linaro.org>
Signed-off-by: Bruce Ashfield <284cc737d174a260eec2a2a6324a304f84b1ae0f@windriver.com>

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