A few drivers for Zynq peripherals made it into mainline recently.
Enable them in the defconfig. The following devices are enabled:
 - Cadence Macb Ethernet controller
 - Cadence I2C controller
 - Arasan SDHCI
Signed-off-by: NSoren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>