These two drivers fail to probe if no name is provided. For details see:
https://www.spinics.net/lists/kernel/msg2457515.htmlSigned-off-by: NHarald Geyer <harald@ccbib.org>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NMark Brown <broonie@kernel.org>