Correct the year definition in Android.bp of messagingtest am: 7c4e41b7dc am: 79b16dd9ae

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Messaging/+/2881806

Change-Id: I4473d298a42028c785da512e54eec682feae9d94
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>