Expose an Output Switcher dialog for system routing

The new dialog will hide app and playback related metadata and will
only control system routing.

Test: adb shell am broadcast -a com.android.systemui.action.LAUNCH_SYSTEM_MEDIA_OUTPUT_DIALOG com.android.systemui
Bug: 284227163
Flag: NA
Change-Id: I13bbcfe9c5446e41f722a154b7740d2c472afad4
diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index e218308..0a71cda 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -1044,6 +1044,7 @@
                   android:exported="true">
             <intent-filter android:priority="1">
                 <action android:name="com.android.systemui.action.LAUNCH_MEDIA_OUTPUT_DIALOG" />
+                <action android:name="com.android.systemui.action.LAUNCH_SYSTEM_MEDIA_OUTPUT_DIALOG" />
                 <action android:name="com.android.systemui.action.LAUNCH_MEDIA_OUTPUT_BROADCAST_DIALOG" />
                 <action android:name="com.android.systemui.action.DISMISS_MEDIA_OUTPUT_DIALOG" />
             </intent-filter>