Merge "Add key for teletext magazine and page number" am: 94618f06

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2261508



Change-Id: I2387c03f44246661845b25410740a1d6b65ddbb0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>