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/net/atm/atm_misc.c b/net/atm/atm_misc.c
index fc63526..f41f026 100644
--- a/net/atm/atm_misc.c
+++ b/net/atm/atm_misc.c
@@ -9,7 +9,7 @@
 #include <linux/sonet.h>
 #include <linux/bitops.h>
 #include <linux/errno.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 
 int atm_charge(struct atm_vcc *vcc, int truesize)
 {