common: Drop linux/bitops.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-rmobile/include/mach/sh_sdhi.h b/arch/arm/mach-rmobile/include/mach/sh_sdhi.h
index be9b233..7741718 100644
--- a/arch/arm/mach-rmobile/include/mach/sh_sdhi.h
+++ b/arch/arm/mach-rmobile/include/mach/sh_sdhi.h
@@ -11,6 +11,7 @@
 #ifndef _SH_SDHI_H
 #define _SH_SDHI_H
 
+#include <linux/bitops.h>
 #define SDHI_CMD			(0x0000 >> 1)
 #define SDHI_PORTSEL			(0x0004 >> 1)
 #define SDHI_ARG0			(0x0008 >> 1)