sh: migrate to arch/sh/include/

This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac.

Most of the moving about was done with Sam's directions at:

http://marc.info/?l=linux-sh&m=121724823706062&w=2

with subsequent hacking and fixups entirely my fault.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index a2a99e4..64b7690 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -15,7 +15,7 @@
 #include <asm/machvec.h>
 #include <asm/uaccess.h>
 #include <asm/thread_info.h>
-#include <asm/cpu/mmu_context.h>
+#include <cpu/mmu_context.h>
 
 atomic_t irq_err_count;