Add shell/freeformat to ktfmt directories

Test: NA
Flag: EXEMPT PREUPLOAD file only
Bug: 372593306

Change-Id: I9ee8bf3af4180b1d3d37f0b391768bb663ea4de7
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index fea2b7b..a92a543 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -18,7 +18,7 @@
                tests/
                tools/
 bpfmt = -d
-ktfmt = --kotlinlang-style --include-dirs=services/permission,packages/SystemUI
+ktfmt = --kotlinlang-style --include-dirs=services/permission,packages/SystemUI,libs/WindowManager/Shell/src/com/android/wm/shell/freeform
 
 [Hook Scripts]
 checkstyle_hook = ${REPO_ROOT}/prebuilts/checkstyle/checkstyle.py --sha ${PREUPLOAD_COMMIT}