We need to pass a pointer to a MemoryRegion for mmio_interface.
So this just adds that.
Reviewed-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>