patch 9.0.0807: with 'smoothscroll' typing "0" may not go to the first column

Problem:    With 'smoothscroll' typing "0" may not go to the first column.
Solution:   Recompute w_cline_height when needed.  Do not scroll up when it
            would move the cursor.
diff --git a/src/version.c b/src/version.c
index 3d1feae..6456028 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    807,
+/**/
     806,
 /**/
     805,