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-rockchip/tpl.c b/arch/arm/mach-rockchip/tpl.c
index 74f185c..88f80b0 100644
--- a/arch/arm/mach-rockchip/tpl.c
+++ b/arch/arm/mach-rockchip/tpl.c
@@ -14,6 +14,7 @@
 #include <version.h>
 #include <asm/io.h>
 #include <asm/arch-rockchip/bootrom.h>
+#include <linux/bitops.h>
 
 #define TIMER_LOAD_COUNT_L	0x00
 #define TIMER_LOAD_COUNT_H	0x04