sh: SH-Mobile R-standby register save/restore

Add code to save/restore registers during
R-standby sleep on SH-Mobile processors.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/suspend.h b/arch/sh/include/asm/suspend.h
index fe9c2a1..64eb41a 100644
--- a/arch/sh/include/asm/suspend.h
+++ b/arch/sh/include/asm/suspend.h
@@ -92,5 +92,6 @@
 #define SUSP_SH_USTANDBY	(1 << 3) /* SH-Mobile U-standby mode */
 #define SUSP_SH_SF		(1 << 4) /* Enable self-refresh */
 #define SUSP_SH_MMU		(1 << 5) /* Save/restore MMU and cache */
+#define SUSP_SH_REGS		(1 << 6) /* Save/restore registers */
 
 #endif /* _ASM_SH_SUSPEND_H */