remoteproc: qcom: q6v5: Fix missing clk_disable_unprepare() in q6v5_wcss_qcs404_power_on()

q6v5_wcss_qcs404_power_on() have no fail path for readl_poll_timeout().
Add fail path for readl_poll_timeout().

Fixes: 0af65b9b ("remoteproc: qcom: wcss: Add non pas wcss Q6 support for QCS404")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221204082757.18850-1-shangxiaojing@huawei.com

drivers/remoteproc/qcom_q6v5_wcss.c

@@ -351,7 +351,7 @@ static int q6v5_wcss_qcs404_power_on(struct q6v5_wcss *wcss)
 	if (ret) {
 		dev_err(wcss->dev,
 			"xo cbcr enabling timed out (rc:%d)\n", ret);
-		return ret;
+		goto disable_xo_cbcr_clk;
 	}
 
 	writel(0, wcss->reg_base + Q6SS_CGC_OVERRIDE);
@@ -417,6 +417,7 @@ static int q6v5_wcss_qcs404_power_on(struct q6v5_wcss *wcss)
 	val = readl(wcss->reg_base + Q6SS_SLEEP_CBCR);
 	val &= ~Q6SS_CLK_ENABLE;
 	writel(val, wcss->reg_base + Q6SS_SLEEP_CBCR);
+disable_xo_cbcr_clk:
 	val = readl(wcss->reg_base + Q6SS_XO_CBCR);
 	val &= ~Q6SS_CLK_ENABLE;
 	writel(val, wcss->reg_base + Q6SS_XO_CBCR);