sh: Migrate common board headers to mach-common/.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/boards/mach-titan/setup.c b/arch/sh/boards/mach-titan/setup.c
index 5de3b2a..81e7e0f 100644
--- a/arch/sh/boards/mach-titan/setup.c
+++ b/arch/sh/boards/mach-titan/setup.c
@@ -9,7 +9,7 @@
  */
 #include <linux/init.h>
 #include <linux/irq.h>
-#include <asm/titan.h>
+#include <mach/titan.h>
 #include <asm/io.h>
 
 static void __init init_titan_irq(void)