vendor: update aosp forked list

Change-Id: Id9fa736329c459990a22d0024e99ce36271f1c4d
diff --git a/utils/aosp-forked-list b/utils/aosp-forked-list
index 2856255..d8a48e1 100644
--- a/utils/aosp-forked-list
+++ b/utils/aosp-forked-list
@@ -1,6 +1,7 @@
 build
 build/soong
 external/drm_hwcomposer
+frameworks/av
 frameworks/base
 frameworks/native
 frameworks/opt/chips