Support prebuilts for Go

Previously, the build assumed that we only provided prebuilts for
Android Big devices and would build from sources for all others. This
change adds support for using prebuilts for Go.

Ignore-AOSP-First: Needed as part of large topic to add go prebuilts to udc-dev
Bug: 289303031
Test: m droid
Change-Id: I59f7ba15b0437fd4cc622f3de2582d999fb13c0d