Rename *Iface* APIs to *Interface*

Address API review feedback, other APIs have been refering to
these as "interface" instead of "iface" so migrate the APIs named
*Iface* to *Interface*.

(cherry-picked from ag/14326779)
Bug: 183972554
Test: atest android.net.UnderlyingNetworkInfoTest
Merged-In: I38b476e762fb57fa88c4a789092d0af6f5330d80
Change-Id: I38b476e762fb57fa88c4a789092d0af6f5330d80
2 files changed
tree: 159c33b41a4d300243da8823dc9cf7757e960e9b
  1. framework/
  2. service/
  3. tests/
  4. OWNERS
  5. TEST_MAPPING