block: move include files to include/block/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/coroutine-sigaltstack.c b/coroutine-sigaltstack.c
index 39dbaa5..e37ebac 100644
--- a/coroutine-sigaltstack.c
+++ b/coroutine-sigaltstack.c
@@ -31,7 +31,7 @@
 #include <pthread.h>
 #include <signal.h>
 #include "qemu-common.h"
-#include "qemu-coroutine-int.h"
+#include "block/coroutine_int.h"
 
 enum {
     /* Maximum free pool size prevents holding too many freed coroutines */