Refactor HyperX Alloy Origins Core to use KLM

based on bug #5203, I suggest changing the code to KLM. I couldn't reproduce the bug the user listed, however there are blank entries in the key dropdown list caused by KEY_EN_UNUSED in the led_index. With KLM there is no such need and it doesn't show blank entries in the dropdown menu.

As side effect, old saved profiles won't load keyboard colors.