MAINTAINERS: Update Cirrus Logic codec driver maintainers

Brian & Paul are no longer active audio codec driver
maintainers. Update list to reflect myself and David
Rhodes as the active maintainers.
Signed-off-by: James Schulman <james.schulman@cirrus.com>
Link: https://lore.kernel.org/r/20200310192751.24487-1-james.schulman@cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

MAINTAINERS

@@ -3964,8 +3964,8 @@ F:	Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt
 F:	sound/soc/codecs/cros_ec_codec.*
 
 CIRRUS LOGIC AUDIO CODEC DRIVERS
-M:	Brian Austin <brian.austin@cirrus.com>
-M:	Paul Handrigan <Paul.Handrigan@cirrus.com>
+M:	James Schulman <james.schulman@cirrus.com>
+M:	David Rhodes <david.rhodes@cirrus.com>
 L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
 S:	Maintained
 F:	sound/soc/codecs/cs*