windows: Move the compatibility header to the compat subfolder

src/libstrongswan/utils/compat/windows.c

@@ -16,7 +16,7 @@
 /* WSAPoll() */
 #define _WIN32_WINNT 0x0600
 
-#include "utils.h"
+#include <utils/utils.h>
 
 #include <errno.h>
 

src/libstrongswan/utils/compat/windows.h

@@ -15,7 +15,7 @@
 
 /**
  * @defgroup windows windows
- * @{ @ingroup utils
+ * @{ @ingroup compat
  */
 
 #ifndef WINDOWS_H_

src/libstrongswan/utils/utils.h

@@ -29,7 +29,7 @@
 #include <string.h>
 
 #ifdef WIN32
-# include "windows.h"
+# include "compat/windows.h"
 #else
 # define _GNU_SOURCE
 # include <arpa/inet.h>