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/include/asm/arch-rockchip/cru_rv1108.h b/arch/arm/include/asm/arch-rockchip/cru_rv1108.h
index 1db25af..0ba5ff6 100644
--- a/arch/arm/include/asm/arch-rockchip/cru_rv1108.h
+++ b/arch/arm/include/asm/arch-rockchip/cru_rv1108.h
@@ -6,6 +6,10 @@
 #ifndef _ASM_ARCH_CRU_RV1108_H
 #define _ASM_ARCH_CRU_RV1108_H
 
+#ifndef __ASSEMBLY__
+#include <linux/bitops.h>
+#endif
+
 #define OSC_HZ		(24 * 1000 * 1000)
 
 #define APLL_HZ		(600 * 1000000)