Add support for INV TTL LEDs
EDA-2446 V3.0 will include 4 new LEDs for the 4 INV TTL channels, as per issue #685.
Gateware will be modified to support these, replicating the behaviour of those on the TTL channels.
EDA-2446 V3.0 will include 4 new LEDs for the 4 INV TTL channels, as per issue #685.
Gateware will be modified to support these, replicating the behaviour of those on the TTL channels.