Create libstatssocket_lazy

Add lazy loading support to libstatssocket.

There are many clients of libstatssocket (lmkd, surfaceflinger,
bootanimation dependencies) that run before the statsd apex is mounted
and cannot link libstatssocket.so when the process starts. Lazy loading
will load the library when the logging apis get called.

This change is modeled heavily off of aosp/1570701, which added
libnativehelper_lazy.

Bug: 178480419
Test: atest libstatssocket_lazy_test
Change-Id: I57e6f698ad43dddc98dc787ba2fe888030c8a282
diff --git a/libstats/OWNERS b/libstats/OWNERS
index 7855774..d391679 100644
--- a/libstats/OWNERS
+++ b/libstats/OWNERS
@@ -1,6 +1,7 @@
-joeo@google.com
+jeffreyhuang@google.com
+jtnguyen@google.com
 muhammadq@google.com
-ruchirr@google.com
+sharaienko@google.com
 singhtejinder@google.com
 tsaichristine@google.com
 yaochen@google.com