ansification: remove _PTR

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>

newlib/libc/stdio/freopen.c

@@ -221,7 +221,7 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp),
 
   fp->_flags = flags;
   fp->_file = f;
-  fp->_cookie = (_PTR) fp;
+  fp->_cookie = (void *) fp;
   fp->_read = __sread;
   fp->_write = __swrite;
   fp->_seek = __sseek;