usb: gadget: SourceSink: Fix show methods for attributes

Most of USB functions place new line after attribute value.
Let's follow this convention also in source sink function
as it improves readability.

Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c
index 1353465..68efa01 100644
--- a/drivers/usb/gadget/function/f_sourcesink.c
+++ b/drivers/usb/gadget/function/f_sourcesink.c
@@ -906,7 +906,7 @@
 	int result;
 
 	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->pattern);
+	result = sprintf(page, "%u\n", opts->pattern);
 	mutex_unlock(&opts->lock);
 
 	return result;
@@ -950,7 +950,7 @@
 	int result;
 
 	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->isoc_interval);
+	result = sprintf(page, "%u\n", opts->isoc_interval);
 	mutex_unlock(&opts->lock);
 
 	return result;
@@ -994,7 +994,7 @@
 	int result;
 
 	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->isoc_maxpacket);
+	result = sprintf(page, "%u\n", opts->isoc_maxpacket);
 	mutex_unlock(&opts->lock);
 
 	return result;
@@ -1038,7 +1038,7 @@
 	int result;
 
 	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->isoc_mult);
+	result = sprintf(page, "%u\n", opts->isoc_mult);
 	mutex_unlock(&opts->lock);
 
 	return result;
@@ -1082,7 +1082,7 @@
 	int result;
 
 	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->isoc_maxburst);
+	result = sprintf(page, "%u\n", opts->isoc_maxburst);
 	mutex_unlock(&opts->lock);
 
 	return result;
@@ -1126,7 +1126,7 @@
 	int result;
 
 	mutex_lock(&opts->lock);
-	result = sprintf(page, "%u", opts->bulk_buflen);
+	result = sprintf(page, "%u\n", opts->bulk_buflen);
 	mutex_unlock(&opts->lock);
 
 	return result;