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/mmc/mmc_spi.c b/drivers/mmc/mmc_spi.c
index 0b690ec..e76ab54 100644
--- a/drivers/mmc/mmc_spi.c
+++ b/drivers/mmc/mmc_spi.c
@@ -13,6 +13,7 @@
 #include <part.h>
 #include <mmc.h>
 #include <stdlib.h>
+#include <linux/bitops.h>
 #include <u-boot/crc.h>
 #include <linux/crc7.h>
 #include <asm/byteorder.h>