arm64: defconfig: makes SND_SIMPLE_CARD to module

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/configs/defconfig

@@ -439,7 +439,7 @@ CONFIG_SND_BCM2835_SOC_I2S=m
 CONFIG_SND_SOC_SAMSUNG=y
 CONFIG_SND_SOC_RCAR=m
 CONFIG_SND_SOC_AK4613=m
-CONFIG_SND_SIMPLE_CARD=y
+CONFIG_SND_SIMPLE_CARD=m
 CONFIG_USB=y
 CONFIG_USB_OTG=y
 CONFIG_USB_XHCI_HCD=y