[why]
OnSetSourceContentAttribute it does not trigger an update for the VSC
with TF change.

[how]
In this call, create a new VSC infoPacket based on the new config, and
allow DisplayTarget decide if an update and pursuant passive flip is
necessary
Tested-by: NDaniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: NKrunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: NReza Amini <Reza.Amini@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>