This patch modifies the SPI flash examples to support for
Zynq Ultrascale MPSoC. In zynq we are selecting the hardware
using chip select 0 where as in Zynq Ultrscale MPSoC we have
to use chip select 1 to select the hardware and we are using
different interrupt id's for Zynq and Zynq Ultrascale MPSoC.
Signed-off-by: P L Sai Krishna <lakshmis@xilinx.com>