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>
Move the SoC outside of the architecture tree and put them at the same
level as boards and architectures allowing both SoCs and boards to be
maintained outside the tree.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>