[ALSA] add MAINTAINERS entry for snd-aoa

This adds me into the MAINTAINERS file for the AOA driver.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

MAINTAINERS

@@ -292,6 +292,13 @@ L:	info-linux@geode.amd.com
 W:	http://www.amd.com/us-en/ConnectivitySolutions/TechnicalResources/0,,50_2334_2452_11363,00.html
 S:	Supported
 
+AOA (Apple Onboard Audio) ALSA DRIVER
+P:	Johannes Berg
+M:	johannes@sipsolutions.net
+L:	linuxppc-dev@ozlabs.org
+L:	alsa-devel@alsa-project.org
+S:	Maintained
+
 APM DRIVER
 P:	Stephen Rothwell
 M:	sfr@canb.auug.org.au