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>

arch/ia64/kernel/smp.c

@@ -32,7 +32,7 @@
 #include <linux/bitops.h>
 #include <linux/kexec.h>
 
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/current.h>
 #include <asm/delay.h>
 #include <asm/machvec.h>

arch/ia64/kernel/smpboot.c

@@ -40,7 +40,7 @@
 #include <linux/percpu.h>
 #include <linux/bitops.h>
 
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/cache.h>
 #include <asm/current.h>
 #include <asm/delay.h>

arch/ia64/kernel/uncached.c

@@ -25,7 +25,7 @@
 #include <asm/pal.h>
 #include <asm/system.h>
 #include <asm/pgtable.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
 #include <asm/tlbflush.h>
 #include <asm/sn/arch.h>