drm/amd/display: reset dpcd_cap.dpcd_rev for passive dongle.

[why]
currently dc has never reset this dpcd_cap.dpcd_rev.

[how]
ideally  we should reset this before redo detection.
change the passive dongle only for now to reduce the impact.

Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>