ASoC: tse850: document axentia,tse850-pcm5142 bindings

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.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 1cd38a7..35485fd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2317,6 +2317,12 @@
 F:	include/net/ax25.h
 F:	net/ax25/
 
+AXENTIA ASOC DRIVERS
+M:	Peter Rosin <peda@axentia.se>
+L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
+S:	Maintained
+F:	Documentation/devicetree/bindings/sound/axentia,*
+
 AZ6007 DVB DRIVER
 M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
 M:	Mauro Carvalho Chehab <mchehab@kernel.org>