drm/amd/display: Adding FastUpdate functionality

Exposing DC Api dc_check_update_surfaces_for_stream
validation will return the answer which type of update is required,
so upper layers can is it safe to call the update API fro high IRQ yes/no.

Signed-off-by: Leon Elazar <leon.elazar@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>