Only the FMC carrier and the breakout board do have push buttons and LEDs.
They are not present on the PCIe carrier. So move the constraints to a
separate file that can be included by the projects that need them and
remove all LED and button related signals from the PCIe project.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Istvan Csomortani
Lars-Peter Clausen
Rejeesh Kutty