ASoC: stm32: add clock dependency for sai

Fixes: 8307b2a ("ASoC: stm32: sai: set sai as mclk clock provider")

Add COMMON_CLK dependency for STM32 SAI,
as it is required by clock provider.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/stm/Kconfig

@@ -3,6 +3,7 @@ menu "STMicroelectronics STM32 SOC audio support"
 config SND_SOC_STM32_SAI
 	tristate "STM32 SAI interface (Serial Audio Interface) support"
 	depends on (ARCH_STM32 && OF) || COMPILE_TEST
+	depends on COMMON_CLK
 	depends on SND_SOC
 	select SND_SOC_GENERIC_DMAENGINE_PCM
 	select REGMAP_MMIO