Add implementation of getInterfaceHash()

Exempt-From-Owner-Approval: cherry-pick from internal
Bug: 136065010
Test: m
Change-Id: I314f19aeca82cc8653eab71c9526ea7a208e6b50
Merged-In: I314f19aeca82cc8653eab71c9526ea7a208e6b50
3 files changed
tree: 4edfe278932502f639adfb39c8fd346e9f5ff9d1
  1. Tethering/