migration: include qemu-file.h

They don't use/know anything about buffered-file.
Signed-off-by: NJuan Quintela <quintela@redhat.com>

migration-exec.c

@@ -18,7 +18,7 @@
 #include "qemu-common.h"
 #include "qemu/sockets.h"
 #include "migration/migration.h"
-#include "buffered_file.h"
+#include "migration/qemu-file.h"
 #include "block/block.h"
 #include <sys/types.h>
 #include <sys/wait.h>

migration-fd.c

@@ -17,7 +17,7 @@
 #include "qemu/sockets.h"
 #include "migration/migration.h"
 #include "monitor/monitor.h"
-#include "buffered_file.h"
+#include "migration/qemu-file.h"
 #include "block/block.h"
 #include "qemu/sockets.h"
 

migration-tcp.c

@@ -16,7 +16,7 @@
 #include "qemu-common.h"
 #include "qemu/sockets.h"
 #include "migration/migration.h"
-#include "buffered_file.h"
+#include "migration/qemu-file.h"
 #include "block/block.h"
 
 //#define DEBUG_MIGRATION_TCP

migration-unix.c

@@ -16,7 +16,7 @@
 #include "qemu-common.h"
 #include "qemu/sockets.h"
 #include "migration/migration.h"
-#include "buffered_file.h"
+#include "migration/qemu-file.h"
 #include "block/block.h"
 
 //#define DEBUG_MIGRATION_UNIX