arm64: defconfig: enable Simple Sound Card support

commit 7fa72cca ("ASoC: rsnd: add HDMI output support")
exchanged Renesas Sound driver's Kconfig selection
from SND_SIMPLE_CARD to SND_SIMPLE_CARD_UTILS, because of this,
defconfig doesn't select SND_SIMPLE_CARD today.
All Renesas platform needs SND_SIMPLE_CARD, Let's select it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/configs/defconfig

@@ -369,6 +369,7 @@ CONFIG_SND_BCM2835_SOC_I2S=m
 CONFIG_SND_SOC_RCAR=y
 CONFIG_SND_SOC_SAMSUNG=y
 CONFIG_SND_SOC_AK4613=y
+CONFIG_SND_SIMPLE_CARD=y
 CONFIG_USB=y
 CONFIG_USB_OTG=y
 CONFIG_USB_XHCI_HCD=y