board: presidio: add LED support

Add LED support for Cortina Access Presidio Engineering Board

Signed-off-by: Jway Lin <jway.lin@cortina-access.com>
Signed-off-by: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

CC: Simon Glass <sjg@chromium.org>
1 file changed