drm/amd/display: retry LT on failing LT in automated request
[Description] Link training is not retried in automated link training request. In case link training is occasionally failing, there is not way to retry so the requested lane settings will not set. Signed-off-by: NWenjing Liu <Wenjing.Liu@amd.com> Reviewed-by: NTony Cheng <Tony.Cheng@amd.com> Acked-by: NHarry Wentland <Harry.Wentland@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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