common: Move cmpxchng.h in

travis-ci: success for Common headers
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

criu/arch/ppc64/include/asm/atomic.h

@@ -11,7 +11,7 @@ typedef struct {
         int counter;
 } atomic_t;
 
-#include "asm/cmpxchg.h"
+#include "common/arch/ppc64/asm/cmpxchg.h"
 
 #define PPC_ATOMIC_ENTRY_BARRIER	"lwsync \n"
 #define PPC_ATOMIC_EXIT_BARRIER		"sync  	\n"

criu/arch/x86/include/asm/atomic.h

 #ifndef __CR_ATOMIC_H__
 #define __CR_ATOMIC_H__
 
-#include "asm/cmpxchg.h"
-
-#define LOCK_PREFIX "\n\tlock; "
+#include "common/arch/x86/asm/cmpxchg.h"
 
 typedef struct {
 	int counter;

criu/arch/x86/include/asm/cmpxchg.h → include/common/arch/x86/asm/cmpxchg.h

@@ -3,6 +3,8 @@
 
 #include <stdint.h>
 
+#define LOCK_PREFIX "\n\tlock; "
+
 #define __X86_CASE_B	1
 #define __X86_CASE_W	2
 #define __X86_CASE_L	4