libservice-connectivity - dynamically link c++ - saves 600 kB

Before in /apex/com.android.tethering/lib:
  -rw-r--r-- 1 system system 749980 1969-12-31 16:00 libservice-connectivity.so
After:
  -rw-r--r-- 1 system system 150748 1969-12-31 16:00 libservice-connectivity.so

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I6892d81ca597d27cc1a85180f7ffa39f2b3de1be
1 file changed