Add section/priority for source package

Change-Id: I55563bd5c2280d300c9e05dbb36b06cd7fbbd9e8
diff --git a/debian/control b/debian/control
index 622de75..e67d9aa 100644
--- a/debian/control
+++ b/debian/control
@@ -1,6 +1,8 @@
 Source: aiy-board-wlan
 Maintainer: AIY Projects <support-aiyprojects@google.com>
 Build-Depends: debhelper
+Section: net
+Priority: optional
 
 Package: aiy-board-wlan
 Section: net