ASoC: atmel: tse850: add ASoC driver for the Axentia TSE-850

The TSE-850 is an FM Transmitter Station Equipment, designed to generate
baseband signals for FM, mainly the DARC subcarrier, but other signals
are also possible.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 35485fd..0dc36a9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2322,6 +2322,7 @@
 L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/sound/axentia,*
+F:	sound/soc/atmel/tse850-pcm5142.c
 
 AZ6007 DVB DRIVER
 M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>