[MIPS] MIPSsim: Move code away from the other MIPS Inc. BSP code.

It shares no code at all.  While at it also fix up the beginning bitrot.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 2b19605..077eb0b 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -327,7 +327,7 @@
 #
 # MIPS SIM
 #
-core-$(CONFIG_MIPS_SIM)		+= arch/mips/mips-boards/sim/
+core-$(CONFIG_MIPS_SIM)		+= arch/mips/mipssim/
 cflags-$(CONFIG_MIPS_SIM)	+= -Iinclude/asm-mips/mach-sim
 load-$(CONFIG_MIPS_SIM)		+= 0x80100000