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/drivers/clk/mediatek/clk-mt7629.c b/drivers/clk/mediatek/clk-mt7629.c
index d683752..5b2aa5f 100644
--- a/drivers/clk/mediatek/clk-mt7629.c
+++ b/drivers/clk/mediatek/clk-mt7629.c
@@ -12,6 +12,7 @@
 #include <asm/arch-mediatek/reset.h>
 #include <asm/io.h>
 #include <dt-bindings/clock/mt7629-clk.h>
+#include <linux/bitops.h>
 
 #include "clk-mtk.h"