remoteproc: qcom_q6v5_wcss: use optional reset for wcss_q6_bcr_reset

The "wcss_q6_bcr_reset" is not used on IPQ8074, and IPQ6018. Use
devm_reset_control_get_optional_exclusive() for this reset so that
probe() does not fail on platforms where it is not used.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Link: https://lore.kernel.org/r/20251129013207.3981517-2-mr.nuke.me@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: mrnuke

drivers/remoteproc/qcom_q6v5_wcss.c

@@ -811,7 +811,8 @@ static int q6v5_wcss_init_reset(struct q6v5_wcss *wcss,
 		}
 	}
 
-	wcss->wcss_q6_bcr_reset = devm_reset_control_get_exclusive(dev, "wcss_q6_bcr_reset");
+	wcss->wcss_q6_bcr_reset = devm_reset_control_get_optional_exclusive(dev,
+							"wcss_q6_bcr_reset");
 	if (IS_ERR(wcss->wcss_q6_bcr_reset)) {
 		dev_err(wcss->dev, "unable to acquire wcss_q6_bcr_reset\n");
 		return PTR_ERR(wcss->wcss_q6_bcr_reset);