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/include/sdhci.h b/include/sdhci.h
index 0ef8c2e..94fc3ed 100644
--- a/include/sdhci.h
+++ b/include/sdhci.h
@@ -9,6 +9,7 @@
 #ifndef __SDHCI_HW_H
 #define __SDHCI_HW_H
 
+#include <linux/bitops.h>
 #include <linux/types.h>
 #include <asm/io.h>
 #include <mmc.h>