Move BasicShellCommandHandler to frameworks/lib/modules-utils

BasicShellCommandHandler is used by mainline modules and the
framwork. There is a new repo that was created for putting
this kind of utility class. Move BasicShellCommandHandler for
the incoming ConnectivityService mainline and updating the
related usage.

Bug: 170598012
Test: m ; verify with adb shell cmd
Change-Id: Ida30c877116090616d4bf3f87fdad835446dac84
1 file changed
tree: 4e470ebf304d4823ce0bae23b87f0d6592d2109e
  1. framework/
  2. OsuLogin/
  3. OWNERS