tree a08b80f7b009e1db0cdf113f3eba2231a876c68b
parent b63973dfc217fc701d967a8cf83c71b34a54fa2c
author Joe Onorato <joeo@google.com> 1715720053 -0700
committer Joe Onorato <joeo@google.com> 1715724736 -0700

Provide a function in envsetup.sh to get the host arch directly

It's very simple logic, and running get_build_var to do it is slow
and has side effects (like needing a lunch target, creating an out
directory, etc.)

Test: source envsetup.sh
Change-Id: If260efd21713874fba7c15dbc0fd23442d776f8a
Merged-In: If260efd21713874fba7c15dbc0fd23442d776f8a