[Output Switcher] Fix list order for preference am: 7c9c5f29f7 am: 78b1d357a8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23710185

Change-Id: I05fd8410765a3d4cb75b6d90dfbb54ffd334192b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>