Refactor imports to packages/modules/StatsD

Define statsd-protos filegroup for reference
in frameworks/base:platformprotos

BUG: 167962588
TEST: TH
TEST: Local build [ m com.android.os.statsd ]
Change-Id: I16e3d9878129037c0e2a53296f6abea77d67eabf
44 files changed
tree: ea0c01a22548f8abd06429ddb0b5bc12b75abd69
  1. bin/