ARM: configs: Enable ASoC AC'97 glue

AC'97 was quite commonly used on at least i.MX designs so enable the
glue code that allows use of AC'97 with ASoC based designs to improve
testing coverage.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220513120632.168148-1-broonie@kernel.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/configs/multi_v7_defconfig

@@ -804,6 +804,7 @@ CONFIG_SND_SOC_TEGRA_TRIMSLICE=m
 CONFIG_SND_SOC_TEGRA_ALC5632=m
 CONFIG_SND_SOC_TEGRA_MAX98090=m
 CONFIG_SND_SOC_DAVINCI_MCASP=m
+CONFIG_SND_SOC_AC97=m
 CONFIG_SND_SOC_AK4642=m
 CONFIG_SND_SOC_CPCAP=m
 CONFIG_SND_SOC_CS42L51_I2C=m