ASoC: stm32: sai: fix clock management

Allow peripheral clock enable/disable on regmap accesses.
Signed-off-by: olivier moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/stm/stm32_sai_sub.c

@@ -766,7 +766,7 @@ static int stm32_sai_sub_parse_of(struct platform_device *pdev,
 		return PTR_ERR(base);
 
 	sai->phys_addr = res->start;
-	sai->regmap = devm_regmap_init_mmio(&pdev->dev, base,
+	sai->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "sai_ck", base,
 						&stm32_sai_sub_regmap_config);
 
 	/* Get direction property */