remove asm/bitops.h includes

remove asm/bitops.h includes

including asm/bitops directly may cause compile errors. don't include it
and include linux/bitops instead. next patch will deny including asm header
directly.

Cc: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c
index 16ea828..ef7bc0a 100644
--- a/drivers/s390/cio/idset.c
+++ b/drivers/s390/cio/idset.c
@@ -6,7 +6,7 @@
  */
 
 #include <linux/slab.h>
-#include <asm/bitops.h>
+#include <linux/bitops.h>
 #include "idset.h"
 #include "css.h"