kubernetes: fix ARM64 build
kubernetes: fix ARM64 build

The first part of the kubernetes build generates some host/build files.
These use the build/host compiler and not the cross infrastructure.

It was working by luck on x86 build / target matches, but blows up on
an ARM64 build.

We fix the CC/CFLAGS settings for the host part of the build to use
the host/build flags and then restore the cross settings for the
rest of the build.

Tested on arm64 and x86-64.

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

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