ASoC: ad73311: Add to list of of Analog Devices supported CODECs

Signed-off-by: NMark Brown <broonie@linaro.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

MAINTAINERS

@@ -595,6 +595,7 @@ S:	Supported
 F:	sound/soc/codecs/adau*
 F:	sound/soc/codecs/adav*
 F:	sound/soc/codecs/ad1*
+F:	sound/soc/codecs/ad7*
 F:	sound/soc/codecs/ssm*
 F:	sound/soc/codecs/sigmadsp.*