exec: move include files to include/exec/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/hw/exynos4_boards.c b/hw/exynos4_boards.c
index c375f16..5dd2961 100644
--- a/hw/exynos4_boards.c
+++ b/hw/exynos4_boards.c
@@ -25,7 +25,7 @@
 #include "sysbus.h"
 #include "net/net.h"
 #include "arm-misc.h"
-#include "exec-memory.h"
+#include "exec/address-spaces.h"
 #include "exynos4210.h"
 #include "boards.h"