Moved server.h to include/wine.

diff --git a/dlls/kernel/toolhelp.c b/dlls/kernel/toolhelp.c
index 9701bb9..d2ef0a4 100644
--- a/dlls/kernel/toolhelp.c
+++ b/dlls/kernel/toolhelp.c
@@ -16,7 +16,7 @@
 #include "tlhelp32.h"
 #include "toolhelp.h"
 #include "heap.h"
-#include "server.h"
+#include "wine/server.h"
 #include "debugtools.h"
 
 DEFAULT_DEBUG_CHANNEL(toolhelp);