Fix includes to prevent testing system to fail

include/boost/predef/hardware/simd.h

@@ -6,6 +6,10 @@ Distributed under the Boost Software License, Version 1.0.
 http://www.boost.org/LICENSE_1_0.txt)
 */
 
+#include <boost/predef/hardware/simd/x86.h>
+#include <boost/predef/hardware/simd/arm.h>
+#include <boost/predef/hardware/simd/ppc.h>
+
 #ifndef BOOST_PREDEF_HARDWARE_SIMD_H
 #define BOOST_PREDEF_HARDWARE_SIMD_H
 
@@ -26,10 +30,6 @@ http://www.boost.org/LICENSE_1_0.txt)
      ]
  */
 
-#include <boost/predef/hardware/simd/x86.h>
-#include <boost/predef/hardware/simd/arm.h>
-#include <boost/predef/hardware/simd/ppc.h>
-
 // We check if SIMD extension of multiples architectures have been detected,
 // if yes, then this is an error!
 #if defined(BOOST_HW_SIMD_ARM_AVAILABLE) && defined(BOOST_HW_SIMD_PPC_AVAILABLE) ||\