Enable UART 16550 driver for Nios-II QEMU platform.
Note: This PR is tested with patched version Qemu 3.0.0 which
adds support for altera_10m50_zephyr machine type.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Now that we have a common DT_SIZE_K macro use it instead of defining
__SIZE_K eveywhere. We also have DT_SIZE_M, so use that in a few
places as well.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>