halui: use lui coolant getters

Signed-off-by: Sebastian Kuzminsky <seb@highlab.com>
lui-getter: add getters for lube and lube-level

Signed-off-by: Sebastian Kuzminsky <seb@highlab.com>
lui: add functions to turn on/off lube

Signed-off-by: Sebastian Kuzminsky <seb@highlab.com>
lui-test: test lube

Signed-off-by: Sebastian Kuzminsky <seb@highlab.com>
halui: use lui for lube

Signed-off-by: Sebastian Kuzminsky <seb@highlab.com>