ARC nSIM simulates pretty much any modern ARC core,
moreover it emulates a lot of different core features so
it is possible to play with them even wo real hardware.
Thus we add yet another ARC core family to be used on simulated
nSIM board.
For now it's just a basic configuration with ARC UART for
smoke-testing of Zephyr on ARC HS CPUs.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Alexey Brodkin