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/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index a79f535..9b0ff47 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -9,7 +9,7 @@
  * the x86-64 page table tree.
  */
 #include <asm/processor.h>
-#include <asm/bitops.h>
+#include <linux/bitops.h>
 #include <linux/threads.h>
 #include <asm/pda.h>