The LED state bits are not mutually exclusive. Bit [0] says LEDs can be
controlled locally and the state bit [1] says wheter the default local
settings or the override settings are used. This means that both bits can be
set at the same time.
Bit [2], the lamp test, indicates wether the test is in progress and logically
works the same as [1].
If bit [0] is not set then bit [1] and [2] has no meaning.
Signed-off-by: Jens Nyberg <jens.nyberg@ericsson.com>
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