tipc: update code comments to reflect new uapi header path

Files tipc.h and tipc_config.h were moved to uapi directory, but
the corresponding comments were not updated at the same time.
Signed-off-by: NYing Xue <ying.xue@windriver.com>
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/uapi/linux/tipc.h

 /*
- * include/linux/tipc.h: Include file for TIPC socket interface
+ * include/uapi/linux/tipc.h: Header for TIPC socket interface
  *
  * Copyright (c) 2003-2006, Ericsson AB
  * Copyright (c) 2005, 2010-2011, Wind River Systems

include/uapi/linux/tipc_config.h

 /*
- * include/linux/tipc_config.h: Include file for TIPC configuration interface
+ * include/uapi/linux/tipc_config.h: Header for TIPC configuration interface
  *
  * Copyright (c) 2003-2006, Ericsson AB
  * Copyright (c) 2005-2007, 2010-2011, Wind River Systems