Add host support to libexpresslog

- change to a set of build artifacts

Flag: EXEMPT Refactor

Ignore-AOSP-First: will cp to aosp after
Bug: n/a
Test: build
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:1396f9d3bb43ea44aa6b0a67fe44570828f9f668)
Merged-In: I8b565a9237319da0b24fed2c802f0e03a15bcd57
Change-Id: I8b565a9237319da0b24fed2c802f0e03a15bcd57