[MIPS] Fix typo of "CONFIG_MT_SMP".

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/mips-boards/sim/sim_setup.c b/arch/mips/mips-boards/sim/sim_setup.c
index 2659c1c..ea2066c 100644
--- a/arch/mips/mips-boards/sim/sim_setup.c
+++ b/arch/mips/mips-boards/sim/sim_setup.c
@@ -57,7 +57,7 @@
 	board_time_init = sim_time_init;
 	prom_printf("Linux started...\n");
 
-#ifdef CONFIG_MT_SMP
+#ifdef CONFIG_MIPS_MT_SMP
 	sanitize_tlb_entries();
 #endif
 }