ASoC: qcom: SND_SOC_SC7180 optionally depends on SOUNDWIRE

If SOUNDWIRE is enabled, then SND_SOC_SC7180 should depend on
SOUNDWIRE to prevent SOUNDWIRE=m and SND_SOC_SC7180=y, which causes
build errors:

s390-linux-ld: sound/soc/qcom/common.o: in function `qcom_snd_sdw_prepare':
common.c:(.text+0x140): undefined reference to `sdw_disable_stream'
s390-linux-ld: common.c:(.text+0x14a): undefined reference to `sdw_deprepare_stream'
s390-linux-ld: common.c:(.text+0x158): undefined reference to `sdw_prepare_stream'
s390-linux-ld: common.c:(.text+0x16a): undefined reference to `sdw_enable_stream'
s390-linux-ld: common.c:(.text+0x17c): undefined reference to `sdw_deprepare_stream'
s390-linux-ld: sound/soc/qcom/common.o: in function `qcom_snd_sdw_hw_free':
common.c:(.text+0x344): undefined reference to `sdw_disable_stream'
s390-linux-ld: common.c:(.text+0x34e): undefined reference to `sdw_deprepare_stream'

Fixes: 3bd975f ("ASoC: qcom: sm8250: move some code to common")
Fixes: 9e3ecb5 ("ASoC: qcom: sc7180: Add machine driver for sound card registration")
Signed-off-by: Randy Dunlap <[email protected]>
Reported-by: kernel test robot <[email protected]>
Cc: Srinivas Kandagatla <[email protected]>
Cc: Banajit Goswami <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Liam Girdwood <[email protected]>
Cc: Ajit Pandey <[email protected]>
Cc: Cheng-Yi Chiang <[email protected]>
Cc: Jaroslav Kysela <[email protected]>
Cc: Takashi Iwai <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

sound/soc/qcom/Kconfig

@@ -187,6 +187,7 @@ config SND_SOC_SC8280XP
 config SND_SOC_SC7180
 	tristate "SoC Machine driver for SC7180 boards"
 	depends on I2C && GPIOLIB
+	depends on SOUNDWIRE || SOUNDWIRE=n
 	select SND_SOC_QCOM_COMMON
 	select SND_SOC_LPASS_SC7180
 	select SND_SOC_MAX98357A