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/board/Marvell/db-xc3-24g4xg/db-xc3-24g4xg.c b/board/Marvell/db-xc3-24g4xg/db-xc3-24g4xg.c
index 1153b18..5f12a27 100644
--- a/board/Marvell/db-xc3-24g4xg/db-xc3-24g4xg.c
+++ b/board/Marvell/db-xc3-24g4xg/db-xc3-24g4xg.c
@@ -7,6 +7,7 @@
 #include <i2c.h>
 #include <init.h>
 #include <asm/gpio.h>
+#include <linux/bitops.h>
 #include <linux/mbus.h>
 #include <linux/io.h>
 #include <asm/arch/cpu.h>