[VolumePanel] Redirect volume panel action to SystemUI

The volume panel is moved to SystemUIDialog, so we
redirect the volume
panel creation to SystemUI.

Bug: 202262476
Test: manual build and use adb to launch with the volume panel action
intent. $adb shell am start -a android.settings.panel.action.VOLUME

Change-Id: I9f23eb68fb7c83d6f0f023f5eefc4290a35db3c3