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>

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"

net/colo.c

@@ -14,7 +14,7 @@
 
 #include "qemu/osdep.h"
 #include "trace.h"
-#include "net/colo.h"
+#include "colo.h"
 
 uint32_t connection_key_hash(const void *opaque)
 {

net/filter-rewriter.c

@@ -11,7 +11,7 @@
 
 #include "qemu/osdep.h"
 #include "trace.h"
-#include "net/colo.h"
+#include "colo.h"
 #include "net/filter.h"
 #include "net/net.h"
 #include "qemu-common.h"