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/net/phy/dp83867.c b/drivers/net/phy/dp83867.c
index 6fac0d5..d435cc1 100644
--- a/drivers/net/phy/dp83867.c
+++ b/drivers/net/phy/dp83867.c
@@ -7,6 +7,7 @@
 #include <log.h>
 #include <phy.h>
 #include <dm/devres.h>
+#include <linux/bitops.h>
 #include <linux/compat.h>
 #include <malloc.h>