patch 8.2.0996: using "aucmdwin" in win_gettype() is not ideal

Problem:    Using "aucmdwin" in win_gettype() is not ideal.
Solution:   Rename to "autocmd".
diff --git a/src/version.c b/src/version.c
index 509ef22..f46bb47 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    996,
+/**/
     995,
 /**/
     994,