colo: use local path for local headers

When pulling in headers that are in the same directory as the C file (as
opposed to one in include/), we should use its relative path, without a
directory.

Reviewed-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
diff --git a/net/colo-compare.c b/net/colo-compare.c
index 23b2d2c..c3a2be4 100644
--- a/net/colo-compare.c
+++ b/net/colo-compare.c
@@ -25,7 +25,7 @@
 #include "net/queue.h"
 #include "chardev/char-fe.h"
 #include "qemu/sockets.h"
-#include "net/colo.h"
+#include "colo.h"
 #include "sysemu/iothread.h"
 
 #define TYPE_COLO_COMPARE "colo-compare"