ASoC: Build regression for snd_soc_acpi_amd_sdca_is_device_rt712_vb

I ran into a build failure on linux-next:

CONFIG_SND_SOC_AMD_ACP=m
CONFIG_SND_SOC_AMD_ACP_COMMON=m
CONFIG_SND_SOC_AMD_ACP5x=y
CONFIG_SND_SOC_AMD_ACP6x=y
CONFIG_SND_AMD_ACP_CONFIG=y
CONFIG_SND_SOC_ACPI_AMD_MATCH=y
CONFIG_SND_SOC_ACPI_AMD_SDCA_QUIRKS=m

x86_64-linux-ld: sound/soc/amd/acp/amd-acp70-acpi-match.o:(.data+0xf00): undefined reference to `snd_soc_acpi_amd_sdca_is_device_rt712_vb'

I usually try to send a workaround patch when I encounter
these, but I could not come up with a good solution.

Please have a look.

     Arnd