wpantund: Allow wpantund to call callbacks
This change allows wpantund to call any binder callbacks that have
been registered with it. Generally, only privileged apps are allowed
to register callbacks with wpantund, so we are limiting the scope for
callbacks to only privileged apps. We also add shell to allow the
command-line utility `lowpanctl` to work properly from `adb shell`.
Bug: b/67393078
Test: manual
Change-Id: I64c52cc5e202725a81230dc67e1cd7c911cf8e1c
(cherry picked from commit 17319cb35c20e9d7c682948542cf196ee0553f7f)
1 file changed