ASoC: rsnd: fixup parent_clk_name of AUDIO_CLKOUTx

commit 25165f79 ("ASoC: rsnd: enable clock-frequency for both
44.1kHz/48kHz") supported both 44.1kHz/48kHz for AUDIO_CLKOUTx,
but it didn't care its parent clock name.
This patch fixes it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sh/rcar/adg.c

@@ -507,7 +507,8 @@ static void rsnd_adg_get_clkout(struct rsnd_priv *priv,
 				rbga = rbgx;
 				adg->rbga_rate_for_441khz = rate / div;
 				ckr |= brg_table[i] << 20;
-				if (req_441kHz_rate)
+				if (req_441kHz_rate &&
+				    !(adg_mode_flags(adg) & AUDIO_OUT_48))
 					parent_clk_name = __clk_get_name(clk);
 			}
 		}
@@ -522,7 +523,8 @@ static void rsnd_adg_get_clkout(struct rsnd_priv *priv,
 				rbgb = rbgx;
 				adg->rbgb_rate_for_48khz = rate / div;
 				ckr |= brg_table[i] << 16;
-				if (req_48kHz_rate)
+				if (req_48kHz_rate &&
+				    (adg_mode_flags(adg) & AUDIO_OUT_48))
 					parent_clk_name = __clk_get_name(clk);
 			}
 		}