staging: most-core: Fix checkpatch warnings

Hi,

This patch solves the following checkpatch.pl's messages in drivers/staging/most/core.c.

WARNING: line over 80 characters
+			return snprintf(buf, PAGE_SIZE, "%s", ch_data_type[i].name);

CHECK: Please use a blank line after function/struct/union/enum declarations
+}
+/**
Signed-off-by: NPeikan Tsai <peikantsai@gmail.com>
Link: https://lore.kernel.org/r/20190825175849.GA74586@MarkdeMacBook-Pro.localSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/most/core.c

@@ -303,7 +303,8 @@ static ssize_t set_datatype_show(struct device *dev,
 
 	for (i = 0; i < ARRAY_SIZE(ch_data_type); i++) {
 		if (c->cfg.data_type & ch_data_type[i].most_ch_data_type)
-			return snprintf(buf, PAGE_SIZE, "%s", ch_data_type[i].name);
+			return snprintf(buf, PAGE_SIZE, "%s",
+					ch_data_type[i].name);
 	}
 	return snprintf(buf, PAGE_SIZE, "unconfigured\n");
 }
@@ -721,6 +722,7 @@ int most_add_link(char *mdev, char *mdev_ch, char *comp_name, char *link_name,
 
 	return link_channel_to_component(c, comp, link_name, comp_param);
 }
+
 /**
  * remove_link_store - store function for remove_link attribute
  * @drv: device driver