slim-ngd: change log level of slave_notify completion

Change the logging of slave_notify completion to debug to avoid
excessive logging.

Change-Id: Ie8e4ec1c7db786a20212f828d1432ea64e87ccd7
Signed-off-by: Naveen Kaje <nkaje@codeaurora.org>
Signed-off-by: Shruthi Krishna <skrish@codeaurora.org>
diff --git a/drivers/slimbus/slim-msm-ngd.c b/drivers/slimbus/slim-msm-ngd.c
index 496b31d..d03c3f1 100644
--- a/drivers/slimbus/slim-msm-ngd.c
+++ b/drivers/slimbus/slim-msm-ngd.c
@@ -1119,7 +1119,7 @@
 		ret = wait_for_completion_timeout(&dev->qmi.slave_notify,
 								HZ);
 		if (!ret) {
-			dev_err(dev->dev, "slave thread wait err:%d", ret);
+			dev_dbg(dev->dev, "slave thread wait err:%d", ret);
 			continue;
 		}
 		/* Probe devices for first notification */