Improve the way to get binder service in ResolverEventReporter

To prevent DNS lookup threads from being blocked by waiting for
the netd_listener service ready, use non-blocking call to get the
service.

Test: system/netd/tests/runtests.sh passed
Change-Id: I1148d49f87cce4091e18b5cfaf363177f4fdbfd0
3 files changed