ASoC: audio-graph-card: tidyup typo SND_AUDIO_GRAPH_CARD

1 "simple" is enough on Kconfig help
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/generic/Kconfig

@@ -20,7 +20,7 @@ config SND_AUDIO_GRAPH_CARD
 	depends on OF
 	select SND_SIMPLE_CARD_UTILS
 	help
-	  This option enables generic simple simple sound card support
+	  This option enables generic simple sound card support
 	  with OF-graph DT bindings.
 
 config SND_AUDIO_GRAPH_SCU_CARD