patch 8.0.1131: not easy to trigger an autocommand for new terminal window

Problem:    It is not easy to trigger an autocommand for new terminal window.
            (Marco Restelli)
Solution:   Trigger BufWinEnter after setting 'buftype'.

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1131,
 /**/
     1130,
 /**/