patch 8.0.0920: cursor wrong after switching altscreen in terminal

Problem:    The cursor shape is wrong after switch back from an alternate
            screen in a terminal window. (arius Gedminas)
Solution:   Change bitfield to unsigned.  Set flag that cursor shape was set.

src/version.c

@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    920,
 /**/
     919,
 /**/