Support for MIPSsim, the cycle accurate MIPS simulator.

arch/mips/Kconfig

arch/mips/Makefile

arch/mips/kernel/head.S

arch/mips/mips-boards/sim/Makefile

arch/mips/mips-boards/sim/cmdline.c

arch/mips/mips-boards/sim/sim_IRQ.c

arch/mips/mips-boards/sim/sim_cmdline.c

arch/mips/mips-boards/sim/sim_int.c

arch/mips/mips-boards/sim/sim_irq.S

arch/mips/mips-boards/sim/sim_mem.c

arch/mips/mips-boards/sim/sim_printf.c

arch/mips/mips-boards/sim/sim_setup.c

arch/mips/mips-boards/sim/sim_smp.c

arch/mips/mips-boards/sim/sim_time.c

include/asm-mips/mach-sim/cpu-feature-overrides.h

include/asm-mips/mips-boards/sim.h

include/asm-mips/mips-boards/simint.h