nommu: Include asm/setup.h in arch/arm/mm/nommu.c

This is needed for the struct meminfo definition.
Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>

arch/arm/mm/nommu.c

@@ -12,6 +12,7 @@
 #include <asm/cacheflush.h>
 #include <asm/sections.h>
 #include <asm/page.h>
+#include <asm/setup.h>
 #include <asm/mach/arch.h>
 
 #include "mm.h"