commit 58059820275c3a347a48e5e8179bdbc839f9d774
author Jayachandran C <jayachandranc@google.com> Wed May 17 23:53:59 2017 -0700
committer Jayachandran C <jayachandranc@google.com> Tue May 23 14:02:46 2017 -0700
tree a84258e1a1966872a24c36c394b6f703b12ea0be
parent 65d3a457d2152a431d158352257e3c846fc8a367

Fix up upstream interface types for case DUN_UNSPECIFIED

The existing logic will add TYPE_MOBILE and TYPE_MOBILE_HIPRI
even if the carrier config has TYPE_DUN for DUN_UNSPECIFIED.

A check is added not to modify the upstream interface types
if there is already a cellular interface type. Add TYPE_MOBILE
and TYPE_MOBILE_HIPRI if there is no cellular types found.

Test: Hotspot on Verizon and T-Mobile US.
      Verified the requestNetwork has the DUN capability.

Bug: 38186915
Change-Id: I74fc5c791fee2885bf66df8975e92c2b48f1668c