conf: machine: include SM8450 HDK in qcom-armv8 machine
conf: machine: include SM8450 HDK in qcom-armv8 machine

Signed-off-by: Nicolas Dechesne <05fca36dfcf68f7e1c9eaf62b074676ab50a133b@linaro.org>

ndechesne/meta-qcom,ndechesne/meta-qcom,ndechesne/meta-qcom