ad9467_fmc: Prevent to use concatenation module on SPI interface

This module cause unnecessary issues during version upgrades.
ad9467_fmc : Upgrade project to 2014.2
axi_ad9467: Independent read/write update

Independent read/write operation is supported on "up" interface
ad9467 ZED: Cosmetic changes on bd script.
ad9467 ZED: Fix over range signal path, and the dma interface.