[lipstick] Export USB modes to QML. Contributes to JB#15005
[lipstick] Export USB modes to QML. Contributes to JB#15005

QML should use the constants provided by C++ to make sure that
they match each other.

giucam/lipstick,sletta/lipstick,sletta/lipstick,giucam/lipstick,giucam/lipstick,sletta/lipstick