Add statsd flags to public namespaces

Add statsd_java and statsd_java_boot to PUBLIC_NAMESPACES, which allows
feature flagging in app-side statsd code (in
packages/modules/StatsD/framework)

Test: TH
Bug: 181823899
Change-Id: Ia3f92a21a9bc050373de6c6fa4969a4d3af4bccb
1 file changed