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/spi/atmel-quadspi.c b/drivers/spi/atmel-quadspi.c
index a6c3939..9320a8b 100644
--- a/drivers/spi/atmel-quadspi.c
+++ b/drivers/spi/atmel-quadspi.c
@@ -17,6 +17,7 @@
 #include <errno.h>
 #include <fdtdec.h>
 #include <dm/device_compat.h>
+#include <linux/bitops.h>
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/iopoll.h>