Add ARC700 image configuration for nSIM instruction set simulator. This is a nice starting point for ARC700 in nSIM. Signed-off-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>