media: add codec_fwk.region_of_interest flag

Bug: 299191092
Test: Build

Change-Id: Id2ae9fc5fc84f1b5f93db056d10a260297f74999
diff --git a/media/aconfig/codec_fwk.aconfig b/media/aconfig/codec_fwk.aconfig
index 1475e15..ddd2bf1 100644
--- a/media/aconfig/codec_fwk.aconfig
+++ b/media/aconfig/codec_fwk.aconfig
@@ -32,3 +32,10 @@
   description: "Feature flag for null output Surface support"
   bug: "297920102"
 }
+
+flag {
+  name: "region_of_interest"
+  namespace: "codec_fwk"
+  description: "Feature flag for region of interest support"
+  bug: "299191092"
+}