Disintegrate asm/system.h for MIPS

Disintegrate asm/system.h for MIPS.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
cc: linux-mips@linux-mips.org
diff --git a/arch/mips/include/asm/barrier.h b/arch/mips/include/asm/barrier.h
index c0884f02..f7fdc24 100644
--- a/arch/mips/include/asm/barrier.h
+++ b/arch/mips/include/asm/barrier.h
@@ -8,6 +8,8 @@
 #ifndef __ASM_BARRIER_H
 #define __ASM_BARRIER_H
 
+#include <asm/addrspace.h>
+
 /*
  * read_barrier_depends - Flush all pending reads that subsequents reads
  * depend on.