Add property for the edge type of the hardware trigger pin ADTRG
Signed-off-by: NEugen Hristev <eugen.hristev@microchip.com>
Acked-by: NRob Herring <robh@kernel.org>
Acked-by: NLudovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>