Swap the order of the headers so we have everything defined and so avoid

the warnings about sem_info and port_info (defined in kernel/OS.h)


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@128 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/core/syscalls.c

@@ -11,6 +11,7 @@
 #include <debug.h>
 #include <vfs.h>
 #include <thread.h>
+#include <OS.h>
 #include <sem.h>
 #include <port.h>
 #include <cpu.h>
@@ -21,7 +22,6 @@
 #include <ksocket.h>
 #include <sys/ioccom.h>
 #include <sys/socket.h>
-#include <OS.h>
 
 #define INT32TOINT64(x, y) ((int64)(x) | ((int64)(y) << 32))