atomic: use <linux/atomic.h>

This allows us to move duplicated code in <asm/atomic.h>
(atomic_inc_not_zero() for now) to <linux/atomic.h>

Signed-off-by: Arun Sharma <asharma@fb.com>
Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Miller <davem@davemloft.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 940d70c..ac33d5f 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -12,7 +12,7 @@
  *
  */
 
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <crypto/if_alg.h>
 #include <linux/crypto.h>
 #include <linux/init.h>