am 0d2480fe: Add system property for ip-up script to get system properties.

Merge commit '0d2480fe57e12a218fee54cd25fcab1bae3aa16a'

* commit '0d2480fe57e12a218fee54cd25fcab1bae3aa16a':
  Add system property for ip-up script to get system properties.
tree: 3129e2de1734e9dbc860e1147b5189fe4d5d7ccc
  1. pppd/