Fix statsd publicapi stub default usage

It was referring to the systemapi defaults, which is incorrect.
I noticed this as I was adding all the stub txt variants to dist.

Bug: 147768409
Test: m
Change-Id: If12fe22c92fbfc82a6efce9c466990d9c3da242e
2 files changed
tree: 91fb012c3cf71560bc3e2d225f928510f2bdc80e
  1. apex/