patch 8.2.4400: MS-Windows: cannot use the mouse in the console with VIMDLL

Problem:    MS-Windows: cannot use the mouse in the console with VIMDLL.
Solution:   use add_char2buf() instead of fix_input_buffer(). (closes #9784,
            closes #9769)
diff --git a/src/version.c b/src/version.c
index 4f17acf..abee2ff 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4400,
+/**/
     4399,
 /**/
     4398,