mpd: add missing AUDIO_SUPPORT in CONFIG_DEPENDS

Signed-off-by: Pacien TRAN-GIRARD <pacien.trangirard@pacien.net>
(cherry picked from commit 0bfe037f0f)

sound/mpd/Makefile

@@ -18,6 +18,7 @@ PKG_LICENSE:=GPL-2.0-or-later
 PKG_LICENSE_FILES:=COPYING
 
 PKG_CONFIG_DEPENDS:= \
+	CONFIG_AUDIO_SUPPORT \
 	CONFIG_BUILD_PATENTED \
 	CONFIG_IPV6 \