server: start cne service

Connectivity Engine (CnE) provides advanced network selection per socket,
reduced signalling traffic, and increased power savings.
The service implements the interface defined by CNEManager which Android
applications may use.

Change-Id: I9ffd1f5d60f5e9e185ab482a35b3b07f29a4124c
(cherry picked from commit 3a4e3ba1bc67c460ec3c2fd4ef169ae25e3e69b1)
(cherry picked from commit 1bb0036652318ac8bbecf3e6c810bbc779387c61)
(cherry picked from commit 3c8af4a2546d9b71d113072d680107cb56651e71)
(cherry picked from commit 861a4b062196020bf24a5b3731c717b5b95a7d77)
(cherry picked from commit e3dba9799892f13c5bc2376b81cf5dceae17492c)