Add python-netaddr to debian/control depends

Change-Id: Ia2dcd6f0be281d31b2119d5c2e9e32c449600255
diff --git a/debian/control b/debian/control
index 26b9fb6..146e42e 100644
--- a/debian/control
+++ b/debian/control
@@ -10,6 +10,6 @@
 
 Package: salt-formula-reclass
 Architecture: all
-Depends: ${misc:Depends}
+Depends: ${misc:Depends}, python-netaddr
 Description: Reclass salt formula
  Configure Reclass hierarchical data storage.