ALSA: hda: cs35l56: Select SERIAL_MULTI_INSTANTIATE

The ACPI IDs used in the CS35L56 HDA drivers are all handled by the
serial multi-instantiate driver which starts multiple Linux device
instances from a single ACPI Device() node.

As serial multi-instantiate is not an optional part of the system add it
as a dependency in Kconfig so that it is not overlooked.
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Link: https://lore.kernel.org/20240619161602.117452-1-simont@opensource.cirrus.comSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/Kconfig

@@ -162,6 +162,7 @@ config SND_HDA_SCODEC_CS35L56_I2C
 	depends on ACPI || COMPILE_TEST
 	depends on SND_SOC
 	select FW_CS_DSP
+	select SERIAL_MULTI_INSTANTIATE
 	select SND_HDA_GENERIC
 	select SND_SOC_CS35L56_SHARED
 	select SND_HDA_SCODEC_CS35L56
@@ -178,6 +179,7 @@ config SND_HDA_SCODEC_CS35L56_SPI
 	depends on ACPI || COMPILE_TEST
 	depends on SND_SOC
 	select FW_CS_DSP
+	select SERIAL_MULTI_INSTANTIATE
 	select SND_HDA_GENERIC
 	select SND_SOC_CS35L56_SHARED
 	select SND_HDA_SCODEC_CS35L56