Make CAPTURE_VIDEO_OUTPUT privileged again

Restricting CAPTURE_VIDEO_OUTPUT permission in ag/4779804 preents the system from binding to RemoteDisplayProviders.
This breaks a legitimate use case of casting a device from Settings.
We temporarily soft revert the change pending a better solution.

Bug: 113371538
Test: Manually tested by casting to a Chrome Cast device.
Change-Id: If8f7fd775998d1b7bcdf9f72fe92cb86845f2044