arm64: defconfig: Enable SND_SOC_WM8978

WM8978 audio CODEC is supported on RZ/G2L SMARC EVK.
Enable it on arm64 defconfig as module.

Signed-off-by: Biju Das <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>

Author: bijudas

arch/arm64/configs/defconfig

@@ -790,6 +790,7 @@ CONFIG_SND_SOC_WCD934X=m
 CONFIG_SND_SOC_WM8904=m
 CONFIG_SND_SOC_WM8960=m
 CONFIG_SND_SOC_WM8962=m
+CONFIG_SND_SOC_WM8978=m
 CONFIG_SND_SOC_WSA881X=m
 CONFIG_SND_SOC_LPASS_WSA_MACRO=m
 CONFIG_SND_SOC_LPASS_VA_MACRO=m