drivers: staging: greybus: audio_manager_sysfs.c: Fixed CHECK for brace issue

Added braces to else and else if statements where checkpatch complained.
Signed-off-by: Chase Metzger <chasemetzger15@gmail.com>
Reviewed-by: Vaibhav Agarwal <vaibhav.sr@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/greybus/audio_manager_sysfs.c

@@ -71,10 +71,11 @@ static ssize_t manager_sysfs_dump_store(
 		num = gb_audio_manager_dump_module(id);
 		if (num)
 			return num;
-	} else if (!strncmp("all", buf, 3))
+	} else if (!strncmp("all", buf, 3)) {
 		gb_audio_manager_dump_all();
-	else
+	} else {
 		return -EINVAL;
+	}
 
 	return count;
 }