Update OutputSwitcher from SettingsPanel to MediaOutputDialog in SystemUI am: 29ae958b76

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13109612

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Id752aba25eaf1428dec5e8316e17a1cb1c3d7f20