sh: Fix path of irqflags.h

This changes path of irqflags.h from linux/ to asm/.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/sh/include/asm/system.h b/arch/sh/include/asm/system.h
index a62c422..90a53a0 100644
--- a/arch/sh/include/asm/system.h
+++ b/arch/sh/include/asm/system.h
@@ -8,7 +8,7 @@
  * from linux kernel code.
  */
 
-#include <linux/irqflags.h>
+#include <asm/irqflags.h>
 #include <asm/types.h>
 
 /*